NUTTY
balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky
(adjective) informal or slang terms for mentally irregular; “it used to drive my husband balmy”
nutty, nutlike
(adjective) having the flavor of nuts; “a nutty sherry”
Source: WordNet® 3.1
Etymology
Adjective
nutty (comparative nuttier, superlative nuttiest)
Containing nuts.
Resembling or characteristic of nuts.
Barmy, crazy, mad.
(Britain, dated) Extravagantly fashionable
Usage notes
In sense “insane”, similar to nuts, but more limited and somewhat milder: nutty means “eccentric, insane”, while “nuts” can mean either “insane” or “enthused, agitated” (“the crowd went nuts”), for which “nutty” is not used: *“the crowd went nutty”.
Synonyms
• nuts, squirrelly
• See also insane
Source: Wiktionary
Nut"ty, a.
1. Abounding in nuts.
2. Having a flavor like that of nuts; as, nutty wine.
Source: Webster’s Unabridged Dictionary 1913 Edition