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

Andrée theorized that the wind would carry them over the North Pole and, depending on conditions, straight on through to Alaska, Canada, or Russia. — Encyclopedia Britannica, 6 July 2026

Some researchers theorize that increasing brain creatine can protect neurons and improve cognition. — Claire Bugos, Verywell Health, 3 July 2026

Following initial reports last month that the event would be held at Madison Square Garden, some theorized that the choice could be an elaborate smoke screen to divert attention from the couple’s real wedding plans. — Jake Offenhartz, Fortune, 2 July 2026

Dodds and the late Donnie Duncan, then Oklahoma’s athletic director, often discussed television happenings in the sport and began theorizing a different path. — Sam Khan Jr, New York Times, 1 July 2026