8
attenuate(verb, quiet, decline, reduce, fall)
7
subtilize(verb, rarity)
7
sublimate(verb, purify)
6
refine(verb, thin, purify)
5
expand(verb, thin, expansion, rarity)
5
distill(verb, pure, condense, refine, purify)
5
purify(verb, condense, extract, refine, infuse)
5
thin(verb, quiet, decline, reduce, fall)
5
weaken(verb, decline, reduce, fall, fail)
4
aggrandize(verb, expansion)
4
amplify(verb, expansion)
4
cut(verb, thin, informal)
4
develop(verb, expansion)
4
dilate(verb, rarity)
4
dilute
4
distend(verb, expansion)
4
extend(verb, expansion)
4
fade(verb, decline, fail, diminish, weaken)
4
inflate(verb, expansion)
4
magnify(verb, expansion)
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APASmart Define. (2015). rarefy thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rarefy/thesaurus/synonyms
ChicagoSmart Define. 2015. "rarefy thesaurus" https://smartdefine.org/rarefy/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, rarefy thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rarefy/thesaurus/synonyms>.
MLASmart Define. "rarefy thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/rarefy/thesaurus/synonyms>