5
signal(adjective, solid, extraordinary, unusual, outstanding)
5
single(adjective, extraordinary, special, individual, distinct)
5
slight(adjective, weak, soft, gentle, thin)
5
solitary(adjective, separate, simple, extraordinary, unusual)
5
specific(adjective, separate, simple, superior, unusual)
5
unaccustomed(adjective, unusual, special, odd, bizarre)
5
unthinkable(adjective, extraordinary, unusual, strange, exceptional)
4
attenuated(adjective, light, weak, fine, thin)
4
deluxe(adjective, moist, superior, sweet, luxury)
4
eccentric(adjective, extraordinary, unusual, strange, outstanding)
4
elect(adjective, excellent, superior, outstanding, special)
4
exiguous(close, light, slight, short, inadequate)
4
exotic(adjective, unusual, strange, special, peculiar)
4
extreme(adjective, excellent, unusual, exceptional, special)
4
eye-catching
4
fabulous(adjective, obscure, dark, superior, mysterious)
4
first-class(adjective, cool, great, pleasant, excellent)
4
freakish(adjective, unusual, special)
4
funny(adjective, odd, bizarre, outlandish)
4
gossamer(adjective, wispy)
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APASmart Define. (2016). rare thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rare/thesaurus/synonyms
ChicagoSmart Define. 2016. "rare thesaurus" https://smartdefine.org/rare/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, rare thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rare/thesaurus/synonyms>.
MLASmart Define. "rare thesaurus" 14 March 2016. Web. 26 September 2026. <https://smartdefine.org/rare/thesaurus/synonyms>