abnormal (adj.)
- aberrant
- abominable
- absurd
- amorphous
- anomalous
- atrocious
- atypical
- brainsick
- crackbrained
- cracked
- crank
- cranky
- crazed
- crazy
- criminal
- crotchety
- daft
- delinquent
- demented
- deranged
- deviant
- different
- disgraceful
- disoriented
- disproportionate
- distraught
- divergent
- dotty
- eccentric
- erratic
- evil
- exceptional
- fey
- flaky
- flighty
- formless
- freakish
- funny
- idiosyncratic
- ignominious
- illegal
- improper
- inappropriate
- incoherent
- incommensurable
- incommensurate
- incompatible
- incongruous
- inconsequent
- inconsistent
- incorrect
- indecorous
- infamous
- insane
- irrational
- irreconcilable
- irregular
- kinky
- kooky
- loco
- lunatic
- mad
- maddened
- maggoty
- manic
- mazed
- mental
- nutty
- odd
- off
- off-base
- off-color
- off-key
- paradoxical
- peculiar
- preternatural
- queer
- quirky
- reasonless
- sacrilegious
- scandalous
- screwball
- screwy
- self-contradictory
- senseless
- shameful
- shameless
- shapeless
- sick
- sinful
- singular
- strange
- stray
- straying
- subnormal
- terrible
- touched
- twisted
- unbalanced
- unconventional
- undue
- unfit
- unfitting
- unhinged
- unlawful
- unnatural
- unrepresentative
- unrighteous
- unseemly
- unsettled
- unsound
- unsuitable
- untypical
- unusual
- unwonted
- wacky
- wandering
- whimsical
- wicked
- witless
- wrong
- wrongful
