Word.ws English Dictionary

Synonyms of hypothesis

20 similar words

Another word for hypothesis is guess. Other synonyms of hypothesis are theory, conjecture, surmise, thesis and given.

Synonyms and similar words for hypothesis

nounAn assumption taken to be true for the purpose of argument or investigation.

  • educated guessA well-informed guess or estimate based on experience or theoretical knowledge.
  • guessA prediction about the outcome of something, typically made without factual evidence or support.
  • supposition
  • conjectureA supposition based upon incomplete evidence; a hypothesis.
  • thesisAn affirmation, or distinction from a supposition or hypothesis.
  • theory[Appendix:Glossary
  • assumption
  • foreguessA conjecture; an assumption.
  • givenA condition that is assumed to be true without further evaluation.
  • hunch
  • inference
  • posit
  • possibility
  • postulation
  • presumption
  • reckoning
  • speculation
  • surmiseThought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
  • suspicion
  • theoryA coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or...

Meaning of hypothesis

  1. noun A tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, or experimentation.
  2. noun An assumption taken to be true for the purpose of argument or investigation.
  3. noun The antecedent of a conditional statement.

Full definition of hypothesis

hypothesis in other languages

Questions about synonyms of hypothesis

What is another word for hypothesis?
Hypothesis has 20 synonyms on Word.ws, such as guess, theory, conjecture, surmise, thesis and given.
What does hypothesis mean?
Hypothesis means a tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, or experimentation.

Source and license

Adapted from Wiktionary: hypothesis (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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