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