Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “nutty”


adjective (PERSON)    /ˈnʌt.i/ US  /ˈnʌt̬.i/ informal
crazy , silly , or strange : She's got some nutty idea about setting up a school for cats .Of unsound mindStupid and sillyStupid and sillyOf unsound mind
(Definition of nutty adjective (PERSON) from the Cambridge Advanced Learner's Dictionary & Thesaurus © 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:

Definitions of “nutty” in other dictionaries

Word of the Day


a good knowledge of something, or the fact that you know it so well

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