87 entries under rare topic. ×

1
fantastic(unusual, special)
1
fitful(adjective, irregular, unreliable, variable)
1
freakish(unusual, special)
1
in short supply(expression, adjective, idiom, inadequate, limited)
1
incomparable(excellent, unusual, special, brilliant)
1
noteworthy(adjective, excellent, extraordinary, unusual, strange)
1
out of the ordinary(expression, adjective, idiom, unusual, strange)
1
semioccasional(adjective, slight, strange, exceptional, short)
1
special(adjective, excellent, extraordinary, unusual, certain)
1
unheard of(verb, expression, phrasal verb, unusual, special)
1
unimaginable(excellent, unusual, special, brilliant)
1
unthinkable(excellent, unusual, special, brilliant)
1
weird(adjective, unusual, special, scarce)
0
anomalous(excellent, unusual, special, brilliant)
0
arcane(unusual, special)
0
astonishing(adjective, scarce, unfamiliar, uncommon)
0
awe-inspiring(adjective, scarce, unfamiliar, uncommon)
0
conspicuous(adjective, scarce, unfamiliar, uncommon)
0
distinctive(unusual, special)
0
distinguished(adjective, scarce, unfamiliar, uncommon)
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APASmart Define. (2015). infrequent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/infrequent/thesaurus/synonyms
ChicagoSmart Define. 2015. "infrequent thesaurus" https://smartdefine.org/infrequent/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, infrequent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/infrequent/thesaurus/synonyms>.
MLASmart Define. "infrequent thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/infrequent/thesaurus/synonyms>