Silly foolish mad foolish absurd insane lunatic idiotic irrational preposterous looney whacky dumb zany wacky nutty idiot very simple loony nonsensical idiotical unreasonable kooky asinine weak daft unwise preposterous slow cuckoo fatuous dippy jerky senseless daffy sappy out to lunch screwball harebrained dotty witless inept simpleminded brainless weak-minded crackpot unreasoning kookie moronic balmy cockeyed fifty percent-baked tomfool bubbleheaded illogical lunkheaded featherheaded clueless thoughtless 50 percent-witted dense imbecile imbecilic dopey ludicrous boring unreasoned unintelligent dorky senseless dim obtuse feebleminded Mind-useless vacuous lamebrain doltish opaque thickheaded thick invalid laughable pinheaded delicate fallacious dunderheaded farcical oafish nonrational dopy softheaded lamebrained unsound surd knuckleheaded clownish vacant-headed dim-witted gormless chuckleheaded airheaded notional sluggish-witted unwell-encouraged boobish buffoonish chowderheaded birdbrained 헬스케어 unconsidered

crazier; craziest Britannica Dictionary definition of CRAZY [also a lot more crazy; most crazy] 1  : not sane: such as a  ordinarily offensive : acquiring or exhibiting extreme mental health issues a healthcare facility for crazy

You should use it to suggest not practical a crazy strategy . You may also use it to indicate pretty angry, extremely enthusiastic or really enthusiastic: She'll go crazy if she finds out. The gang went crazy.