60 entries under special topic. ×

1
infrequent(excellent, unusual, brilliant, rare)
1
noteworthy(excellent, extraordinary, unusual, exceptional)
1
odd(excellent, extraordinary, unusual, exceptional, marvelous)
1
peculiar(adjective, excellent, extraordinary, unusual, exceptional)
1
scarce(light, excellent, thin, unusual)
1
strange(adjective, light, extraordinary, exceptional)
1
unheard of(light, thin, extraordinary, unusual, strange)
1
unprecedented(excellent, extraordinary, unusual, exceptional, marvelous)
1
weird(adjective, extraordinary, unusual, exceptional, marvelous)
0
aberrant(excellent, unusual, brilliant, rare)
0
abnormal(excellent, unusual, brilliant, rare)
0
anomalous(excellent, unusual, brilliant, rare)
0
arcane(unusual, rare)
0
atypical(excellent, extraordinary, brilliant, remarkable)
0
distinctive(unusual, rare)
0
eccentric(extraordinary, unusual, exceptional, remarkable)
0
exotic(unusual, rare)
0
few(light, thin, unusual, rare)
0
freakish(unusual, rare)
0
incomparable(excellent, unusual, brilliant, rare)
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APASmart Define. (2015). unthinkable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unthinkable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unthinkable thesaurus" https://smartdefine.org/unthinkable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unthinkable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unthinkable/thesaurus/synonyms>.
MLASmart Define. "unthinkable thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unthinkable/thesaurus/synonyms>