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Synonyms
balmy, barmy [chiefly British], batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, demented, deranged, fruity [slang], gaga, haywire, insane, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge), moonstruck, non compos mentis, nuts, nutty, psycho, psychotic, scatty [chiefly British], screwy, unbalanced, unhinged, unsound, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]
Antonyms
balanced, compos mentis, sane, sound, uncrazy
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bats.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1919, in the meaning defined above
More from Merriam-Webster on bats
Rhyming Dictionary: Words that rhyme with bats
Thesaurus: All synonyms and antonyms for bats
Nglish: Translation of bats for Spanish Speakers
Britannica English: Translation of bats for Arabic Speakers
See Definitions and Examples
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