nutty
[adjective]
Synonyms: enthusiastic, buggy, bugs, gung ho, keen, warm, zealous, insane, batty, bedlamite, cracked, crazed, crazy, daft, demented, lunatic, nuts, foolish, absurd, cockamamie, daffy, harebrained, kooky, loony, loopy, wacky

[TahlilGaran] English Synonym Dictionary ▲

nut‧ty /ˈnʌti/ adjective

1. informal crazy:
It’s another of his nutty ideas.
She’s nutty as a fruitcake (=completely crazy).

2. tasting like, or containing, nuts:
This coffee has a rich nutty flavour.
a nutty cake

[TahlilGaran] Dictionary of Contemporary English ▲