uncommon (adj.)
- appalling
 - astonishing
 - breakaway
 - conspicuous
 - different
 - egregious
 - exceptional
 - extraordinary
 - fabulous
 - fantastic
 - few
 - formidable
 - incredible
 - infrequent
 - marked
 - marvelous
 - notable
 - noteworthy
 - noticeable
 - novel
 - occasional
 - offbeat
 - original
 - outstanding
 - rare
 - recherche
 - remarkable
 - scanty
 - scarce
 - signal
 - singular
 - slow
 - sparse
 - sporadic
 - strange
 - striking
 - superior
 - unexpected
 - unfamiliar
 - unheard-of
 - unimaginable
 - unique
 - unthinkable
 - unthought-of
 - unusual
 - unwonted
 - wonderful