Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “nutty”


adjective [-er/-est only] (PERSON)   /ˈnʌt̬·i/
very foolish, or not practical: It sounds nutty, but she can make it work.
(Definition of nutty adjective (PERSON) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of nutty

Browse related topics

You are looking at an entry to do with Of unsound mind, but you might be interested in these topics from the Psychology, psychiatry, & psychoanalysis topic area:

More American English definitions for “nutty”

Definitions of “nutty” in other dictionaries

Word of the Day


a journey on a large ship for pleasure, during which you visit several places

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More