Eccentric
Abnormal
Synonyms: Unconventional, abnormal, aberrant, odd, strange, weird, off-centre, freakish, idiosyncratic, singular, capricious, outré, way out, offbeat, screwy, oddball, cranky, madcap, rum, kooky, bizarro, uncommon, irregular, anomalous, queer, peculiar, bizarre, outlandish, extraordinary, quirky, nonconformist, whimsical, avant garde, far out, nutty, freaky, wacky, off the wall, zany, dotty, wacko, and in left field.
Oddity
Synonyms: Oddity, unorthodox person, individualist, free spirit, oddball, weirdie, nut, case, crank, loony, one-off, nutter, wacko, screwball, wackadoo, dingbat, odd fellow, character, individual, misfit, weirdo, freak, nutcase, head case, crackpot, loon, odd bod, queer fish, wack, kook, and wackadoodle.
Example Sentences
He has an eccentric sense of style.
Her eccentric behavior always stands out.
The artist was known for his eccentric works.
His eccentric ideas challenged traditional views.