EN

Synonyms for hypothesis

All synonyms

Noun

1. Theory — an assumption taken to be true for the purpose of argument or investigation

theory informal, conjecture formal, supposition, assumption, speculation, surmise, guess, postulate, postulation, presumption, thesis, inference, possibility, theorem, educated guess, surmisal

Definitions

  1. n. 1

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

Forms

Plural
hypotheses → theories, conjectures, suppositions, assumptions…

Choose the right word

Hypothesis or Guess?

A hypothesis may be termed a comprehensive guess.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

  • assumption I proceed on the assumption that anger is idolatry.
  • speculation He sometimes indulges himself in idle speculation.
  • surmise "What do you think of my theory?" "It is all surmise."
  • supposition This supposition is essentially correct.

Popularity over time

Word1850 → 2019Trend
hypothesissteady
assumptionsteady
speculationsteady
surmisesteady
suppositionfalling
protasisrising

Use in printed books, per decade from 1850 to 2019.

By length

5 letters
guess1
6 letters
theory2, thesis2
7 letters
theorem2, surmise2
8 letters
protasis, surmisal
9 letters
inference3, postulate3
10 letters
assumption3, conjecture3
11 letters
possibility5, speculation4, presumption3, supposition4, postulation

The small number after each word is its number of syllables (theory2 = 2 syllables).

In other languages

Français
hypothèse
Italiano
ipotesi
Español
hipótesis
Deutsch
Voraussetzung
Català
hipòtesi