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

One study has theorized that more of the by-the-wind sailors may appear after particularly warm winters. —Dinah Voyles Pulver, USA Today, 7 May 2026

Sabres coach Lindy Ruff theorized that there were more distractions at home and possibly more nerves trying to give the home crowd its money’s worth. —Matthew Fairburn, New York Times, 7 May 2026

At the heart of this massive excavation in Laufenburg is a redox flow battery, a concept first theorized in 1879. —Mrigakshi Dixit, Interesting Engineering, 4 May 2026

The discovery led scientists to theorize the two species mated and triggered years of debate. —Jenny Staletovich, Miami Herald, 2 May 2026