aberrant

1 being out of the ordinary a year of aberrant weather—record rainfall in the summer, record heat in the autumn Synonyms exceptional, aberrated, abnormal, anomalous, atypical, especial, exceeding, extraordinaire, extraordinary, freak, odd, peculiar, phenomenal, preternatural, rare, singular, uncommon, uncustomary, unique, unusual, unwontedRelated Words conspicuous, notable, noticeable, outstanding, prominent, remarkable, salient, striking; bizarre, deviant, eccentric, freakish, monstrous, oddball, outlandish, quaint, strange, weird; incomprehensible, inconceivable, incredible, unimaginable, unthinkableNear Antonyms everyday, familiar, frequentAntonyms common, customary, normal, ordinary, typical, unexceptional, unextraordinary, usual

2 departing from some accepted standard of what is normal aberrant behavior can be a sign of rabies in a wild animal Synonyms deviant, aberrational, abnormal, anomalous, atypical, deviate, devious, irregular, unnatural, untypicalRelated Words unrepresentative; extraordinary, preternatural; rare, uncommon, uncustomary, unusual, unwonted; bizarre, curious, far-out, funny, kinky, odd, outlandish, out-of-the-way, outré, peculiar, quaint, queer, queerish, quirky, remarkable, screwy, strange, wacky (also whacky), way-out, weird, wild; eccentric, freakish, idiosyncratic, nonconformist, unconventional, unorthodox; extraordinary, preternatural; rare, uncommon, uncustomary, unusual, unwonted; odd, peculiar, strangeNear Antonyms common, commonplace, everyday, familiar, ordinary, routine, run-of-the-mill, run-of-the-mine (or run-of-mine), unexceptional, unremarkable, workaday; customary, usual, wonted; archetypal (also archetypical), average, characteristic, representativeAntonyms natural, normal, regular, standard, typical