Synonyms of hypothesize

hypothesize

verb

hī-ˈpä-thə-ˌsīz 

as in to say

to take as true or as a fact without actual proof

if we hypothesize that current population trends continue for the next 50 years

Synonyms & Similar Words

• say
• assume
• presume
• believe
• think
• suppose
• postulate
• conclude
• guess
• presuppose
• figure
• accept
• take for granted
• insist
• imagine
• dream
• premise
• infer
• hypothecate
• speculate
• suspect
• deduce
• surmise
• theorize
• conjecture
• claim
• swallow
• perceive
• declare
• judge
• gather
• contend
• credit
• assert
• maintain
• conceive
• suspicion
• affirm
• reckon
• allege
• take
• fancy
• aver
• avow
• preconceive
• profess
• avouch

Antonyms & Near Antonyms

• doubt
• question
• challenge
• wonder (about)
• disagree (with)
• deny
• dispute
• discredit
• disbelieve
• reject
• controvert
• discount
• distrust
• repudiate
• disclaim
• disavow
• refute
• disprove
• mistrust
• rebut
• disown
• belie
• confute

Example Sentences

Recent Examples of hypothesize

The researchers had hypothesized that, in the mixing of fluids in large natural systems, turbulence generated by tiny organisms plays an underappreciated role. — Stephen Ornes, Quanta Magazine, 2 Oct. 2026

Certainly, the ancient Greeks appreciated symmetry and precision in their architecture; it’s even been hypothesized that this symmetry was considered divine and thus represented religious dedication to the space. — Emma Gometz, Scientific American, 22 Sep. 2026

Denisovan cave life Scientists have hypothesized that Denisovans lived throughout Asia. — Katie Hunt, CNN Money, 9 Sep. 2026

For astronauts, researchers hypothesize that increased radiation exposure during spaceflight speeds up atherosclerosis, the narrowing of arteries implicated in heart attacks and strokes. — Elizabeth Cooney, STAT, 3 Sep. 2026