90 entries under infrequent topic. ×

10
bizarre(adjective, separate, extraordinary, unusual, strange)
10
different(adjective, separate, extraordinary, superior, unusual)
10
few(adjective, unusual, exceptional, special, limited)
10
phenomenal(adjective, excellent, obscure, solid, dark)
10
rarefied(adjective, light, weak, fine, thin)
10
weird(adjective, extraordinary, unusual, strange, exceptional)
9
atypical(adjective, separate, excellent, extraordinary, unusual)
9
occasional(adjective, slight, thin, exceptional, spare)
9
scant(adjective, light, weak, slight, poor)
9
sporadic(adjective, slight, thin, unusual, exceptional)
9
subtle(adjective, cool, weak, great, soft)
9
superior(adjective, good, cool, weak, great)
9
unwonted(adjective, solid, extraordinary, unusual, strange)
8
distinguished(adjective, separate, simple, extraordinary, superior)
8
limited(adjective, close, light, excellent, poor)
8
recherché(adjective, light, weak, soft, excellent)
8
unfamiliar(adjective, obscure, unusual, strange, new)
7
unexpected(adjective, extraordinary, unusual, strange, exceptional)
7
in short supply(expression, adjective, idiom, inadequate, limited)
7
inconceivable(adjective, obscure, extraordinary, unusual, belief)
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APASmart Define. (2016). rare thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/rare/thesaurus/synonyms
ChicagoSmart Define. 2016. "rare thesaurus" https://smartdefine.org/rare/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, rare thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/rare/thesaurus/synonyms>.
MLASmart Define. "rare thesaurus" 14 March 2016. Web. 29 September 2026. <https://smartdefine.org/rare/thesaurus/synonyms>