1. (imp. & p. p.) of Derange.

2. (a.) Disordered; especially, disordered in mind; crazy; insane.

abnormal amiss askew awry balmy bananas barmy bats batty bereft of reason berserk bonkers brainsick cockeyed convulsed crackbrained cracked crazed crazy cuckoo daft deluded demented deprived of reason dippy disarranged discomfited discomposed disconcerted dislocated disordered disorderly disorganized disoriented distraught disturbed dotty flighty hallucinated haywire in disorder insane irrational kooky loco loony lunatic mad maddened maniac manic mazed mental mentally deficient meshuggah misplaced moon-struck non compos non compos mentis not all there not right nuts nutty odd of unsound mind off on the fritz out of gear out of joint out of kelter out of kilter out of order out of place out of tune out of whack perturbed potty psycho psychotic queer reasonless roily screwy senseless shuffled sick stark-mad stark-staring mad strange tetched touched turbid turbulent unbalanced unhinged unsane unsettled unsound upset wacky wandering witless