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Synonyms and antonyms of hypothesis in English

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Synonyms for hypothesis

  • proposition
  • supposition

a belief used as the basis for action

A proposal intended to explain certain facts or observations, related words, a tentative insight into the natural world.

  • possibility
  • hypothetical
  • theoretical account
  • speculation
  • historicism

a message expressing an opinion based on incomplete evidence

  • hypopigmentation
  • hypoplastic anaemia
  • hypoplastic anemia
  • hypoplastic dwarf
  • hypoproteinemia
  • hypospadias
  • hypostasis of Christ
  • hypostatisation
  • hypostatise
  • hypostatization
  • hypostatize
  • hypotension
  • hypotensive
  • hypothalamic releasing factor
  • hypothalamic releasing hormone
  • hypothalamus
  • hypothecate
  • hypothermia
  • hypothesise
  • hypothesize
  • hypothetical creature
  • hypothetical imperative
  • hypothrombinemia
  • hypothyroidism
  • hypotonicity
  • hypovitaminosis
  • hypovolaemia
  • hypovolaemic
  • hypovolemia
  • hypovolemic
  • hypovolemic shock
  • hypoxic hypoxia
  • Hypoxidaceae
  • Hypoxis hirsuta
  • Hypothermia After Cardiac Arrest
  • Hypothermia After Cardiac Arrest Registry
  • hypothermia blanket
  • hypothermia therapy
  • hypothermia treatment
  • Hypothermia, induced
  • hypothermic
  • hypothermic anesthesia
  • hypothermic circulatory arrest
  • Hypothermic machine perfusion
  • hypothermicly
  • Hypothèse Extraterrestre
  • Hypothesis Driven Lexical Adaptation
  • Hypothesis test
  • Hypothesis testing
  • hypothesis testing sampling
  • hypothesis to test
  • Hypothesis-Based Testing
  • Hypothesis-Oriented Algorithm for Clinicians
  • hypothesised
  • hypothesiser
  • hypothesisers
  • hypothesises
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noun as in taking something for granted; something expected

Strongest matches

  • expectation
  • presumption
  • supposition

Strong matches

  • postulation
  • presupposition
  • theorization

Weak matches

  • shot in the dark
  • sneaking suspicion

noun as in assuming possession, power

Strongest match

  • acquisition
  • appropriation
  • undertaking
  • shouldering

noun as in arrogance

  • imperiousness
  • self-importance

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Example sentences.

Administration officials have told states to be ready to distribute a vaccine or vaccines as early as November on the assumption that one or more would be approved by the Food and Drug Administration by year’s end or early next year.

Biden’s advisers have prioritized planning for vaccine distribution on the assumption that one or more vaccines would be authorized, or close to approval, by early next year.

If the shifts among women and older voters seen in the Post-ABC poll reflect an actual shift in the electorate — a fair assumption based on a wide range of other state and national polls — that seems very difficult to do.

The IOC’s understanding of risk, he maintained, was based on an assumption of “slow randomness” rather than the “extreme randomness” that the Oxford researchers believe governs the financial risks of hosting the games.

These conclusions are largely based on unfounded assumptions – rather than actual detailed inspections, physical analysis or testing of any of the building systems.

The Samaritan guidelines are written around the assumption that suicide is a purely irrational act, an act spurred by illness.

“It was just another assumption based on a paradigm that marginalizes non-heterosexual people,” he writes.

It is a reasonable assumption, considering his roots in the Republican Party, in the Marines, and his proud Scots-Irish roots.

The way I film is based on the assumption that the audience is as smart and dumb as I am.

And that appears to have been their operating assumption when the 43 student teachers went missing.

Oddly enough this assumption—the most warrantable of the lot—was the earliest to fall under disrepute.

Hilda's assumption that the ageing woman had telegraphed for her on inadequate grounds had proved to be quite wrong.

Remember that you asked me to answer on the assumption that you had adequate forces at your disposal, and I did so.

Baroudi accepted all these attentions with a magnificent indifference that had in it nothing of assumption.

The application of this text to the legend of the Assumption is obvious, and occupied the first division of the discourse.

Related Words

Words related to assumption are not direct synonyms, but are associated with the word assumption . Browse related words to learn more about word associations.

noun as in coming to power

  • inauguration
  • taking over

noun as in choosing or taking something as one's own

  • approbation
  • confirmation
  • embracement
  • endorsement
  • maintenance
  • ratification

noun as in foundation for belief, action

  • antecedent(s)
  • chief ingredient
  • explanation
  • fundamental
  • infrastructure
  • justification
  • principal element
  • underpinning

noun as in putting regard in as true

  • understanding

noun as in something regarded as true

  • gospel truth

Viewing 5 / 55 related words

On this page you'll find 138 synonyms, antonyms, and words related to assumption, such as: acceptance, belief, expectation, guess, hunch, and hypothesis.

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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What is the difference between assumption and hypothesis?

Definitions.

- Referring to a belief or idea that is taken for granted without any proof or evidence. - Describing a premise or supposition made in the absence of concrete facts or information. - Talking about a starting point or basis for reasoning or argumentation.

- Referring to a proposed explanation or theory that is based on limited evidence or preliminary observations. - Describing an educated guess or prediction made before conducting an experiment or investigation. - Talking about a tentative statement that can be tested and proven true or false.

List of Similarities

  • 1 Both involve making assumptions or statements without complete evidence.
  • 2 Both are used in the process of reasoning or forming conclusions.
  • 3 Both are used in scientific research and experimentation.
  • 4 Both are used to propose explanations or predictions.
  • 5 Both can be revised or modified based on new information or evidence.

What is the difference?

  • 1 Nature: Assumption is often based on personal beliefs or opinions, while hypothesis is based on logical reasoning and scientific principles.
  • 2 Evidence: Assumption lacks concrete evidence or proof, while hypothesis is based on limited evidence or preliminary observations.
  • 3 Testing: Assumption does not require testing or experimentation, while hypothesis can be tested and proven true or false through experiments.
  • 4 Purpose: Assumption is often used as a starting point for further exploration or discussion, while hypothesis is used to guide scientific investigations and experiments.
  • 5 Scope: Assumption can be more general and broad, while hypothesis is more specific and focused on a particular phenomenon or question.

What context can I use each word in?

Good things to know

Remember this!

Assumption and hypothesis are both words used to describe statements or beliefs made without complete evidence. However, there are some key differences between the two. An assumption is a belief or idea that is taken for granted without proof, often based on personal beliefs or opinions. On the other hand, a hypothesis is a proposed explanation or theory based on limited evidence or preliminary observations, typically used in scientific research and experimentation. While an assumption is not tested or proven, a hypothesis can be tested through experiments to determine its validity.

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Synonyms of assumptions

  • as in theories
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Thesaurus Definition of assumptions

Synonyms & Similar Words

  • presumptions
  • presuppositions
  • suppositions
  • hypotheticals
  • propositions
  • conclusions
  • declarations
  • foundations
  • affirmations
  • avouchments
  • ipse dixits

Thesaurus Entries Near assumptions

assumptions

Cite this Entry

“Assumptions.” Merriam-Webster.com Thesaurus , Merriam-Webster, https://www.merriam-webster.com/thesaurus/assumptions. Accessed 27 Apr. 2024.

More from Merriam-Webster on assumptions

Nglish: Translation of assumptions for Spanish Speakers

Britannica English: Translation of assumptions for Arabic Speakers

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Definition of 'hypothesis'

IPA Pronunciation Guide

Video: pronunciation of hypothesis

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hypothesis in American English

Hypothesis in british english, examples of 'hypothesis' in a sentence hypothesis, related word partners hypothesis, trends of hypothesis.

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In other languages hypothesis

  • American English : hypothesis / haɪˈpɒθɪsɪs /
  • Brazilian Portuguese : hipótese
  • Chinese : 假设
  • European Spanish : hipótesis
  • French : hypothèse
  • German : Hypothese
  • Italian : ipotesi
  • Japanese : 仮説
  • Korean : 가설
  • European Portuguese : hipótese
  • Spanish : hipótesis
  • Thai : สมมุติฐาน

Browse alphabetically hypothesis

  • hypothermia
  • hypothermic
  • hypothesis states
  • hypothesis suggests
  • hypothesis testing
  • All ENGLISH words that begin with 'H'

Related terms of hypothesis

  • Gaia hypothesis
  • null hypothesis
  • initial hypothesis
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[ hahy- poth - uh -sis , hi- ]

  • a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation working hypothesis or accepted as highly probable in the light of established facts.
  • a proposition assumed as a premise in an argument.
  • the antecedent of a conditional proposition.
  • a mere assumption or guess.

/ haɪˈpɒθɪsɪs /

  • a suggested explanation for a group of facts or phenomena, either accepted as a basis for further verification ( working hypothesis ) or accepted as likely to be true Compare theory
  • an assumption used in an argument without its being endorsed; a supposition
  • an unproved theory; a conjecture

/ hī-pŏth ′ ĭ-sĭs /

, Plural hypotheses hī-pŏth ′ ĭ-sēz′

  • A statement that explains or makes generalizations about a set of facts or principles, usually forming a basis for possible experiments to confirm its viability.
  • plur. hypotheses (heye- poth -uh-seez) In science, a statement of a possible explanation for some natural phenomenon. A hypothesis is tested by drawing conclusions from it; if observation and experimentation show a conclusion to be false, the hypothesis must be false. ( See scientific method and theory .)

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Derived forms.

  • hyˈpothesist , noun

Other Words From

  • hy·pothe·sist noun
  • counter·hy·pothe·sis noun plural counterhypotheses
  • subhy·pothe·sis noun plural subhypotheses

Word History and Origins

Origin of hypothesis 1

Synonym Study

Example sentences.

Though researchers have struggled to understand exactly what contributes to this gender difference, Dr. Rohan has one hypothesis.

The leading hypothesis for the ultimate source of the Ebola virus, and where it retreats in between outbreaks, lies in bats.

In 1996, John Paul II called the Big Bang theory “more than a hypothesis.”

To be clear: There have been no double-blind or controlled studies that conclusively confirm this hair-loss hypothesis.

The bacteria-driven-ritual hypothesis ignores the huge diversity of reasons that could push someone to perform a religious ritual.

And remember it is by our hypothesis the best possible form and arrangement of that lesson.

Taken in connection with what we know of the nebulæ, the proof of Laplace's nebular hypothesis may fairly be regarded as complete.

What has become of the letter from M. de St. Mars, said to have been discovered some years ago, confirming this last hypothesis?

To admit that there had really been any communication between the dead man and the living one is also an hypothesis.

"I consider it highly probable," asserted Aunt Maria, forgetting her Scandinavian hypothesis.

Related Words

  • explanation
  • interpretation
  • proposition
  • supposition

IMAGES

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VIDEO

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COMMENTS

  1. HYPOTHESIS Synonyms: 35 Similar and Opposite Words

    Synonyms for HYPOTHESIS: theory, thesis, proposition, premise, assumption, suggestion, guess, supposition; Antonyms of HYPOTHESIS: fact, knowledge, assurance, certainty

  2. Hypothesis vs Assumption: Decoding Common Word Mix-Ups

    A hypothesis is an educated guess or prediction based on evidence and observations. It is a proposed explanation for a phenomenon that can be tested through further investigation. An assumption, on the other hand, is a belief or idea that is taken for granted without evidence or proof.

  3. ASSUMPTION Synonyms: 137 Similar and Opposite Words

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  4. HYPOTHESES Synonyms: 35 Similar and Opposite Words

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  5. HYPOTHESIS

    HYPOTHESIS - Synonyms, related words and examples | Cambridge English Thesaurus

  6. Synonyms of HYPOTHESIS

    a statement that is assumed to be true and is used as a basis for an argument. the premise that men and women are on equal terms in this society. Synonyms. assumption, proposition, thesis, ground, argument, hypothesis,

  7. HYPOTHESIS Synonyms

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  9. hypothesis

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    bully pulpit. causality. clipart. common concept. common conception. Sentence Examples. Proper usage in context. View all. Health and the Income Inequality Hypothesis.

  11. assumption

    assumption - WordReference thesaurus: synonyms, discussion and more. All Free. WordReference.com | Online Language Dictionaries. English Thesaurus | assumption. ... assumption, hypothesis, theory - English Only forum assumption, supposition and hypothesis - English Only forum

  12. Hypothesis synonyms, hypothesis antonyms

    Synonyms for hypothesis in Free Thesaurus. Antonyms for hypothesis. 17 synonyms for hypothesis: theory, premise, proposition, assumption, thesis, postulate ...

  13. Hypothesis Definition & Meaning

    hypothesis: [noun] an assumption or concession made for the sake of argument. an interpretation of a practical situation or condition taken as the ground for action.

  14. 84 Synonyms & Antonyms for ASSUMPTION

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  15. Synonyms of ASSUMPTION

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  16. Assumption and hypothesis are synonyms

    The words Assumption and Hypothesis have synonymous (similar) meaning. Find out what connects these two synonyms. Understand the difference between Assumption and Hypothesis.

  17. Assumption and hypothesis: Learn the difference between these synonyms

    Assumption and hypothesis are both words used to describe statements or beliefs made without complete evidence. However, there are some key differences between the two. An assumption is a belief or idea that is taken for granted without proof, often based on personal beliefs or opinions. On the other hand, a hypothesis is a proposed explanation or theory based on limited evidence or ...

  18. HYPOTHESIS Definition & Meaning

    Hypothesis definition: a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working hypothesis ) or accepted as highly probable in the light of established facts.. See examples of HYPOTHESIS used in a sentence.

  19. ASSUMPTIONS Synonyms: 41 Similar Words

    Synonyms for ASSUMPTIONS: theories, premises, hypotheses, beliefs, presumptions, presuppositions, postulates, premisses, suppositions, hypotheticals

  20. HYPOTHESIS definition in American English

    a suggested explanation for a group of facts or phenomena, either accepted as a basis for further verification ( working hypothesis) or accepted as likely to be true. Compare theory (sense 5) 2. an assumption used in an argument without its being endorsed; a supposition. 3. an unproved theory; a conjecture. Collins English Dictionary.

  21. ASSUMPTION in Thesaurus: 1000+ Synonyms & Antonyms for ASSUMPTION

    Related terms for assumption- synonyms, antonyms and sentences with assumption

  22. HYPOTHESIS Definition & Meaning

    Hypothesis definition: a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working hypothesis ) or accepted as highly probable in the light of established facts. See examples of HYPOTHESIS used in a sentence.