whacky

/ˈwæki/
/ˈhwæki/
IPA guide

Other forms: whackier

Definitions of whacky
  1. adjective
    informal or slang terms for mentally irregular
    synonyms: around the bend, balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kookie, kooky, loco, loony, loopy, nuts, nutty, round the bend, wacky
    insane
    afflicted with or characteristic of mental derangement
  2. adjective
    ludicrous, foolish
    synonyms: cockamamie, cockamamy, goofy, sappy, silly, wacky, zany
    foolish
    devoid of good sense or judgment
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