anomalous (adj.)
- aberrant
- abnormal
- absurd
- amorphous
- atypical
- crank
- cranky
- crotchety
- deviant
- different
- disproportionate
- divergent
- dotty
- eccentric
- erratic
- exceptional
- fey
- flaky
- foreign
- formless
- freakish
- funny
- idiosyncratic
- incoherent
- incommensurable
- incommensurate
- incompatible
- incongruous
- inconsequent
- inconsistent
- irreconcilable
- irregular
- kinky
- kooky
- maggoty
- monstrous
- nutty
- odd
- off-key
- paradoxical
- peculiar
- preternatural
- prodigious
- queer
- quirky
- screwball
- screwy
- self-contradictory
- shapeless
- singular
- strange
- stray
- straying
- subnormal
- twisted
- unconventional
- unnatural
- unrepresentative
- untypical
- wacky
- wandering
- whimsical