Synonyms of uncommon

1 Syllable

outré, odd, weird, few, queer, rum, rare

2 Syllables

curious, kooky, queerer, special, outre, queerest, strange, fewer, choicer, seldom, oner, rummy, sparsest, screwy, fewest, scarcer, choicest, rumer, rarest, odder, oddest, singler, novel, novels, scarce, scarcest, freakish, startling, kookier, rummier, strangest, standout, sparser, offbeat

3 Syllables

notable, extreme, distingue, arcane, celebrious, nameable, prodigious, rarer, abnormal, diacritic, nondescript, atypic, unusual, bizarre, subtilest, curiously, hand-picked, unique, eccentric, peculiar, unwonted, sporadic, fantastic, infrequent, unfrequent, rarely, surprising, gilt-edged, exotic, distingué, singled-out, aberrant, unshared, egregious, singular, subtiler, especial, finely

4 Syllables

phenomenal, individual, original, remarkably, irregular, unorthodox, unfamiliar, unthinkable, high-profile, distinctive, exceptional, unusually, occasional, anomalous, untypical, unitary, noteworthy, unfrequently, remarkable

5 Syllables

unaccountable, unconventional, unaccustomed, anomalistic, heteromorphic, unprecedented, unordinary, extraordinaire, uncustomary, terrifically, extraordinary

6 Syllables

inapprehensible, uninvestigated, unimaginable, uncharacteristic