Synonyms of whacky
- 1. cockamamie, cockamamy, goofy, sappy, silly, wacky, whacky, zany, foolish (vs. wise)
- usage: ludicrous, foolish; "gave me a cockamamie reason for not going"; "wore a goofy hat"; "a silly idea"; "some wacky plan for selling more books"
- 2. 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, insane (vs. sane)
- usage: informal or slang terms for mentally irregular; "it used to drive my husband balmy"
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Definition and meaning of whacky (Dictionary)