adjective
Synonyms & Antonyms (Entry 1 of 2)
- showing or marked by a lack of good sense or judgment //offered a completely cuckoo suggestion for using the defunct strip mallSynonymsabsurd asinine balmy barmy [chiefly British] batty brainless bubbleheaded cockeyed crackbrained crackpot crazy daffy daft dippy dotty fatuous featherheaded fool foolish fruity [slang] gaga half-baked half-witted harebrained inept insane jerky kooky (also kookie) loony (also looney) loony tunes (or looney tunes) lunatic [informal] lunkheaded mad meshuga (or meshugge also meshugah or meshuggah) nonsensical nutty preposterous sappy screwball