in theory

idiom

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

Little to none in theory, given the Fed’s pride in independent decision making. —Derek Saul, Forbes, 17 Sep. 2024

Some sports drinks have caffeine, which could deplete electrolytes since caffeine is a diuretic, increasing urination in theory. —Matt Fuchs, TIME, 16 Sep. 2024

For decades, finding the best tretinoin cream was, in theory, simple enough: Schedule an appointment with your dermatologist for a prescription. —Deanna Pai, Vogue, 16 Sep. 2024

So in theory a chatbot might prove more effective in swaying someone from their pet conspiracy theory. —Jennifer Ouellette, Ars Technica, 12 Sep. 2024