3
oddity(noun, adjective, nonconforming)
3
off(adjective, odd, bizarre, outlandish, nonconforming)
3
out of the ordinary(expression, adjective, idiom, separate, extraordinary)
3
outré(adjective, unusual, strange, crazy, special)
3
preeminent(adjective, light, thin, extraordinary, unusual)
3
rarity
3
raving
3
screwy(adjective, extraordinary, strange, exceptional, irregular)
3
seldom met with(expression, adjective, idiom, inadequate, insufficient)
3
so much(expression, adverb, very, extremely, extraordinarily)
3
standout(adjective, informal, usual, better, rare)
3
startling(adjective, separate, unusual, strange, special)
3
thin(light, slight, spare, short, insufficient)
3
unbelievable(adjective, extraordinary, remarkable, impressive)
3
uncharacteristic(adjective, unusual, strange, irregular, odd)
3
unknown(adjective, obscure, unusual, strange, new)
3
unnatural(adjective, extraordinary, unusual, strange, exceptional)
3
unordinary(adjective, solid, extraordinary, unusual, wonderful)
2
deviate(adjective, extraordinary, strange, exceptional, irregular)
2
extremely(adverb, little, very, really, hardly)
10 years ago|28k views|share |citing 
APASmart Define. (2016). uncommon thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/uncommon/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncommon thesaurus" https://smartdefine.org/uncommon/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, uncommon thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/uncommon/thesaurus/synonyms>.
MLASmart Define. "uncommon thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/uncommon/thesaurus/synonyms>