Adjektive
crazy [ crazier ; craziest ] , {Compta.}
insane [ more insane ; most insane ] , {Compta.}
crazed [ more crazed ; most crazed ] , {Psych.}
loony [ loonier ; looniest ] , {Psych.}
haywire [ more haywire ; most haywire ]
madcap [ more madcap ; most madcap ]
Noun
madman [pl. madmen] , {Psych.}
kook [pl. kooks] , {familier}
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