Synonyms of theorize

theorize

verb

as in to speculate

to think of or suggest ideas about what is possibly true or real; to form or suggest a theory about something

Many scientists have theorized about the possibility of life on other planets.

Related Words

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

Dissimilar Words

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

Example Sentences

Recent Examples of theorize

Although Jordan didn't have good relations with the Assad regime, O'Brien theorized that one of the Syrian refugees the country hosted might know something about Tice. —Jennifer Jacobs, CBS News, 1 June 2026

Scientists theorize that exposing flowering tomato plants to temperatures below 50°F damages the flowers. —Megan Hughes, Better Homes & Gardens, 31 May 2026

Iranian scientists theorized that the other advanced civilizations in our galaxy may have already died out. —Wyatt Williams, Harpers Magazine, 26 May 2026

The vantage in this piece was earned in those rooms, not theorized from outside them. —Vibhas Ratanjee, Forbes.com, 23 May 2026