60 entries under special topic. ×

5
outstanding(adjective, excellent, unusual, exceptional, marvelous)
5
unaccustomed(adjective, unusual, strange, new)
4
aberrant(adjective, excellent, unusual, exceptional)
4
anomalous(adjective, excellent, unusual, exceptional)
4
exotic(adjective, unusual, strange, new, exceptional)
4
infrequent(adjective, excellent, unusual, brilliant)
4
queer(adjective, extraordinary, unusual, remarkable)
4
scarce(excellent, unusual, brilliant, rare)
4
unconventional(adjective, unusual, strange, new, fresh)
4
unorthodox(adjective, unusual, strange, new)
4
unwonted(adjective, extraordinary, unusual, strange, new)
3
atypical(adjective, excellent, extraordinary, brilliant)
3
incomparable(excellent, unusual, brilliant, rare)
3
notable(adjective, excellent, unusual, exceptional)
3
superior(adjective, excellent, unusual, exceptional)
3
unimaginable(excellent, extraordinary, unusual, exceptional, marvelous)
2
few(unusual, rare, infrequency)
2
irregular(adjective, excellent, unusual, brilliant)
2
outré(adjective, unusual, exceptional, original)
2
particular(adjective, extraordinary, exceptional, marvelous)
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APASmart Define. (2016). unprecedented thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unprecedented/thesaurus/synonyms
ChicagoSmart Define. 2016. "unprecedented thesaurus" https://smartdefine.org/unprecedented/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unprecedented thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unprecedented/thesaurus/synonyms>.
MLASmart Define. "unprecedented thesaurus" 15 January 2016. Web. 29 September 2026. <https://smartdefine.org/unprecedented/thesaurus/synonyms>