90 entries under scarce topic. ×

6
astonishing(adjective, extraordinary, unusual, strange, exceptional)
6
incredible(adjective, extraordinary, unusual, strange, exceptional)
6
seldom(adjective, adverb, slight, unusual, strange)
6
sparse(adjective, slight, thin, strange, exceptional)
5
conspicuous(adjective, great, solid, extraordinary, unusual)
5
far-out(adjective, extraordinary, unusual, strange, exceptional)
5
isolated(adjective, separate, simple, strange, exceptional)
5
superior(adjective, characteristic, cool, excellent, extraordinary)
4
peerless(adjective, separate, simple, exceptional, special)
4
scanty(adjective, slight, thin, strange, exceptional)
3
choice(adjective, excellent, superior, unusual, exceptional)
3
inconceivable(adjective, light, extraordinary, unusual, strange)
3
out of the ordinary(expression, adjective, idiom, separate, extraordinary)
3
startling(adjective, separate, unusual, strange, special)
2
deficient(adjective, light, thin, strange, exceptional)
2
great(adjective, extraordinary, unusual, famous, exceptional)
2
in short supply(expression, adjective, idiom, inadequate, limited)
2
limited(adjective, light, superior, unusual, strange)
2
precious(adjective, excellent, fine, superior, exceptional)
1
eminent(adjective, great, excellent, extraordinary, unusual)
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APASmart Define. (2016). uncommon thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/uncommon/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncommon thesaurus" https://smartdefine.org/uncommon/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, uncommon thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/uncommon/thesaurus/synonyms>.
MLASmart Define. "uncommon thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/uncommon/thesaurus/synonyms>