uncommon

Synonyms: aberrant abnormal anomalous arcane bizarre curious eccentric egregious exceptional exotic extraordinary extreme fantastic few freakish infrequent irregular nondescript noteworthy novel odd original out of the ordinary out of the way outré peculiar prodigious queer rare remarkable scarce seldom singular sporadic startling strange surprising unaccustomed unconventional uncustomary unfamiliar unheard of unique unorthodox unusual weird

Antonyms: common familiar normal regular usual

Synonyms: distinctive extraordinary incomparable inimitable notable noteworthy outstanding rare remarkable singular special superior unimaginable unique unparalleled unprecedented unthinkable unwonted

Antonyms: bad imperfect poor