4
rum(adjective, eccentric)
4
scanty(adjective, slight, thin, strange, exceptional)
4
signal(adjective, solid, extraordinary, unusual, wonderful)
4
uncanny(adjective, unusual, strange, odd, bizarre)
4
unmatched
3
extra(adverb, little, very, really, hardly)
3
rarely(adverb, very, really, extremely, hardly)
3
astounding(adjective, extraordinary, odd, remarkable, impressive)
3
choice(adjective, excellent, superior, unusual, exceptional)
3
crazy(adjective, extraordinary, unusual, wild, strange)
3
divergent(adjective, extraordinary, unusual, strange, exceptional)
3
erratic(adjective, extraordinary, unusual, wild, strange)
3
exclusive(adjective, separate, simple, excellent, extraordinary)
3
freak(adjective, extraordinary, unusual, wild, strange)
3
grotesque(adjective, unconformity)
3
improper(adjective, severe, harsh, exceptional, unreasonable)
3
inconceivable(adjective, light, extraordinary, unusual, strange)
3
lone(adjective, separate, simple, unusual, strange)
3
nonconformist(adjective, unusual, strange, unique, eccentric)
3
oddball(adjective, unusual, wild, strange, crazy)
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APASmart Define. (2016). uncommon thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/uncommon/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncommon thesaurus" https://smartdefine.org/uncommon/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, uncommon thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/uncommon/thesaurus/synonyms>.
MLASmart Define. "uncommon thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/uncommon/thesaurus/synonyms>