peculiar

I (curious) adjective aberrant, abnormal, abnormous, alien, anomalistic, anomalistical, anomalous, astonishing, bizarre, breaking with tradition, eccentric, foreign, inexplicable, irregular, little-known, mysterious, mystifying, odd, out of place, out of the ordinary, out of the way, outlandish, perplexing, preternatural, puzzling, queer, rare, remarkable, signal, singular, startling, strange, supernatural, surprising, unaccountable, unaccustomed, unclassified, unconformable, unconventional, uncustomary, unexampled, unexpected, unfamiliar, unheard of, unimaginable, unnatural, unorthodox, weird II (distinctive) adjective atypical, characteristic, contrasted, contrasting, contrastive, deviating, different, differentiated, differing, disagreeing, discordant, discrepant, disparate, dissimilar, dissonant, distinct, distinguishable, distinguished, divergent, exceptional, extraordinary, idiosyncratic, in a different class, inconformable, incongruent, incongruous, individual, marked, noteworthy, original, out of the ordinary, particular, separated, singular, special, uncommon, unconformable, unconforming, unequal, unimitated, unique, unlike, unusual, variant III index anomalous, certain (particular), certain (specific), different, distinct (distinguished from others), distinctive, eccentric, express, extraordinary, irregular (not usual), ludicrous, nonconforming, noteworthy, novel, particular (individual), particular (specific), personal (individual), prodigious (amazing), remarkable, several (separate), singular, specific, suspicious (questionable), unaccustomed, uncanny, uncommon, unique, unusual