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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But which offers an (in theory) easier path through the knockout rounds? Eduardo Tansley, New York Times, 27 June 2026 See All Example Sentences for in theory

Browse Nearby Words

Cite this Entry

“In theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20theory. Accessed 6 Jul. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster