Synonyms of eccentric in English:

eccentric


See definition of eccentric

adjective

1‘they were worried by his eccentric behaviour’

SYNONYMS
unconventional, uncommon, abnormal, irregular, aberrant, anomalous, odd, queer, strange, peculiar, weird, bizarre, off-centre, outlandish, freakish, extraordinary
idiosyncratic, quirky, singular, nonconformist, capricious, whimsical
outré, avant garde
informal way out, far out, offbeat, dotty, nutty, screwy, freaky, oddball, wacky, cranky, off the wall, madcap, zany
British informal rum
North American informal kooky, wacko, bizarro, in left field
ANTONYMS

ordinary, conventional


noun

1‘like all princes he was something of an eccentric’

SYNONYMS
oddity, odd fellow, unorthodox person, character, individualist, individual, free spirit, misfit
informal oddball, queer fish, weirdo, weirdie, freak, nut, nutter, nutcase, case, head case, crank, crackpot, loony, loon
British informal one-off, odd bod
North American informal wacko, wack, screwball, kook
US informal wackadoo, wackadoodle
Australian, New Zealand informal dingbat