THEORIZE Synonyms: 69 Similar and Opposite Words

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.

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Recent Examples of theorize Reed theorized that the rise in gluten-free products for people with celiac disease may contribute to the gluten-free frenzy. —

Alyssa Goldberg, USA Today, 8 Jan. 2026 Of course, the Globes are where the famous 2024 gossip sesh between Selena Gomez, Taylor Swift, and Keleigh Teller occurred, which lip readers theorized was about Gomez trying to take a picture with Chalamet but being blocked by Jenner. —

Elizabeth Logan, Glamour, 6 Jan. 2026 Fittingly, more than a few observers have been eager to turn art into blood sport, pitting Coen against Coen, Safdie against Safdie, and theorizing about which sibling is the greater talent. —

Justin Chang, New Yorker, 2 Jan. 2026 Astronomers theorize that 2003 EH1, which takes about 5½ years to orbit the sun, is a dead comet that is now essentially a rock. —

Doris Alvarez Cea, Florida Times-Union, 2 Jan. 2026 See All Example Sentences for theorize

Recent Examples of Synonyms for theorize

speculate

Verb

Multiple people close to the situation had stated or speculated that an official request had been sent, and the president himself had said that Combs had asked for clemency, but Thursday’s report was the first official confirmation of the letter’s existence.

— Jem Aswad, Variety, 8 Jan. 2026
Some speculated that Harbaugh could take a year off, but his brother, Los Angeles Chargers head coach Jim, ruled that out on Wednesday.

— Ryan Morik, FOXNews.com, 8 Jan. 2026