16
irregular(adjective, excellent, extraordinary, unusual, strange)
16
scarce(adjective, slight, excellent, thin, extraordinary)
16
unorthodox(adjective, unusual, strange, new, exceptional)
15
offbeat(adjective, unusual, strange, exceptional, fresh)
15
unfamiliar(adjective, unusual, strange, new, exceptional)
14
atypical(adjective, separate, excellent, extraordinary, unusual)
13
fantastic(adjective, extraordinary, strange, exceptional, marvelous)
13
noteworthy(adjective, excellent, solid, extraordinary, unusual)
13
outlandish(adjective, unusual, wild, strange, new)
13
unparalleled(adjective, extraordinary, unusual, strange, wonderful)
12
original(adjective, characteristic, separate, cool, simple)
12
outstanding(adjective, characteristic, cool, excellent, extraordinary)
12
quaint(adjective, unusual, wild, strange, new)
12
sporadic(adjective, slight, thin, unusual, strange)
11
aberrant(adjective, extraordinary, unusual, strange, exceptional)
11
anomalous(adjective, extraordinary, unusual, strange, exceptional)
11
notable(adjective, excellent, solid, extraordinary, unusual)
11
unprecedented(adjective, new, wonderful, exceptional, marvelous)
10
unwonted(adjective, solid, extraordinary, unusual, strange)
10
freakish(adjective, unusual, wild, strange, special)
10 years ago|28k views|share |citing 
APASmart Define. (2016). uncommon thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/uncommon/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncommon thesaurus" https://smartdefine.org/uncommon/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, uncommon thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/uncommon/thesaurus/synonyms>.
MLASmart Define. "uncommon thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/uncommon/thesaurus/synonyms>