in theory

phrase

1

—used to say what should happen or be true if a theory is correct

In theory, the reading skills of the students should improve.

2

—used to say that something seems to be true or possible as an idea but may not actually be true or possible

I agree with you in theory, but realistically I don't think we have the time to do that.

Examples of in theory in a Sentence

Recent Examples on the Web

The expiration of the Memorandum of Understanding between the United States and Iran this week in theory allows Iran to begin charging tolls again. — David Goldman, CNN Money, 18 Aug. 2026

The states are seeking extensive financial damages that could, in theory, total billions of dollars, plus changes to how the company operates Facebook and Instagram. — ABC News, 17 Aug. 2026

Health care affordability will be solved by building durable coalitions around ideas that work in the real world, not just in theory. — Kody Kinsley, STAT, 17 Aug. 2026

In June, Fire Point, one of Ukraine's largest defense manufacturers tested a ballistic missile, which would in theory allow Ukraine to respond to Russia's long-range attacks. — Aidan Stretch, CBS News, 16 Aug. 2026

Rhymes for in theory

• kashmiri
• beery
• bleary
• cheery
• cirri
• dearie
• deary
• dreary
• eerie
• kiri
• leary
• leery