nutty

UK: /ˈnʌti/ US: /ˈnʌti/ ,(nut′ē)

Inflections of 'nutty' (adj):

nuttier

adj comparative

nuttiest

adj superlative

WordReference Random House Learner's Dictionary of American English © 2026

nut•ty /ˈnʌti/   adj., -ti•er, -ti•est. 

1. nutlike, esp. in flavor.
2. Slang Terms
   • silly or ridiculous:
     a nutty idea.
   • peculiar, odd, strange;
     eccentric:
     I saw this nutty old man walking around the park talking to lamp posts.

nut•ti•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026

nut•ty  (nut′ē), adj., -ti•er, -ti•est. 

1. abounding in or producing nuts.
2. nutlike, esp. in flavor.
3. Slang Terms
   • silly or ridiculous:
     a nutty suggestion.
   • eccentric;
     queer.
   • insane.
   • very or excessively interested, excited, or the like:
     He's nutty about Mexican food.
4. full of flavor or zest;
   lively;
   stimulating;
   meaty:
   He offered several rich, nutty ideas on the subject.

• nut + -y¹ 1655–65

nut′ti•ly, adv. 
nut′ti•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

nutty / ˈnʌtɪ/ adjective ( -tier, -tiest)

1. containing or abounding in nuts
2. resembling nuts, esp in taste
3. Also: nutsy eccentric
4. followed by over or about: extremely fond (of) or enthusiastic (about)
5. Also: nutsy mentally disordered

ˈnuttiness noun