65 entries under rare topic. ×

4
prodigious(adjective, excellent, extraordinary, unusual, superb)
4
prominent(adjective, great, solid, extraordinary, unusual)
4
scarce(adjective, light, excellent, thin, extraordinary)
3
incredible(adjective, extraordinary, unusual, strange, superb)
3
standout(adjective, informal, usual, better)
2
astonishing(adjective, extraordinary, unusual, strange, superb)
2
inconceivable(adjective, obscure, extraordinary, unusual, strange)
2
inimitable(adjective, unusual, special, single)
2
out of the ordinary(expression, adjective, idiom, separate, extraordinary)
2
outre(unusual, wild, strange, special, fantastic)
2
unaccustomed(adjective, unusual, strange, new, special)
1
awe-inspiring(adjective, awful, strange, superb, wonderful)
1
few(light, thin, unusual, special, individual)
1
few and far between(expression, adjective, idiom, light, thin)
1
memorable(adjective, great, superior, unusual, famous)
1
something else(expression, adjective, separate, exceptional, special)
1
startling(adjective, separate, unusual, strange, special)
0
arcane(unusual, special)
0
egregious(unusual, special)
0
extreme(unusual, special)
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APASmart Define. (2016). singular thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/singular/thesaurus/synonyms
ChicagoSmart Define. 2016. "singular thesaurus" https://smartdefine.org/singular/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, singular thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/singular/thesaurus/synonyms>.
MLASmart Define. "singular thesaurus" 28 March 2016. Web. 27 September 2026. <https://smartdefine.org/singular/thesaurus/synonyms>