61
unusual(adjective, separate, simple, excellent, obscure)
47
unique(adjective, separate, simple, excellent, obscure)
46
uncommon(adjective, separate, simple, slight, excellent)
39
extraordinary(adjective, quality, separate, excellent, solid)
38
exceptional(adjective, quality, separate, cool, great)
32
singular(adjective, separate, simple, excellent, obscure)
30
strange(adjective, separate, simple, excellent, solid)
29
odd(adjective, separate, simple, excellent, solid)
26
scarce(adjective, weak, slight, excellent, poor)
22
infrequent(adjective, weak, slight, excellent, poor)
21
peculiar(adjective, excellent, solid, extraordinary, superior)
18
remarkable(adjective, light, excellent, extraordinary, unusual)
17
special(adjective, separate, simple, excellent, fine)
17
sparse(adjective, close, light, slight, poor)
17
curious(adjective, solid, extraordinary, unusual, strange)
16
unparalleled(adjective, fine, extraordinary, unusual, wonderful)
15
fine(adjective, good, quality, weak, great)
14
exquisite(adjective, moist, good, quality, cool)
14
choice(adjective, moist, good, quality, cool)
13
thin(adjective, slight, fine, poor, exceptional)
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APASmart Define. (2016). Rare thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rare/thesaurus/synonyms
ChicagoSmart Define. 2016. "Rare thesaurus" https://smartdefine.org/rare/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, Rare thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rare/thesaurus/synonyms>.
MLASmart Define. "Rare thesaurus" 14 March 2016. Web. 20 September 2026. <https://smartdefine.org/rare/thesaurus/synonyms>