12
rare(adjective, light, weak, fine, thin)
11
thin(adjective, dull, light, slight, fine)
9
exalted
9
sublime
8
grand
8
lofty
7
attenuated(verb, adjective, dull, light, slight)
7
rarified
6
refined(noun, verb, adjective, pure, slim)
6
tenuous(adjective, light, weak, fine, thin)
5
diluted(verb, adjective)
5
high-flown
5
high-minded
5
idealistic
5
noble
4
airy(adjective, weak, thin, delicate, dubious)
4
elevated
4
high
4
lean(adjective, dull, light, slight, fine)
4
thinned
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APASmart Define. (2016). rarefied thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rarefied/thesaurus/synonyms
ChicagoSmart Define. 2016. "rarefied thesaurus" https://smartdefine.org/rarefied/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, rarefied thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rarefied/thesaurus/synonyms>.
MLASmart Define. "rarefied thesaurus" 1 April 2016. Web. 20 September 2026. <https://smartdefine.org/rarefied/thesaurus/synonyms>