Synonyms of idiosyncratic

1 Syllable
rum, queer, outré, quaint
2 Syllables
quainter, kooky, queerer, queerest, quirky, kookier, rummier, oddest, strangest, rumer, quaintest, offbeat, odder, rummy
3 Syllables
erratic, personal, diacritic, eccentric, peculiar
4 Syllables
egotistic, individual, distinctive, unitary, subjective, self-admiring
5 Syllables
unprecedented, characteristic, unconventional, uncustomary, nonobjective, unobjective
7 Syllables
nonrepresentative