3
indestructible
3
rapacious(adjective, empty, gross, avid, greedy)
3
ravening(adjective, empty, gross, avid, greedy)
3
sordid
3
swinish(adjective, desirous, syrupy, wishful, go-go)
3
undying
2
avaricious
2
cormorant
2
dominating
2
edacious(adjective, empty, gross, avid, greedy)
2
grasping(adjective, empty, gross, avid, greedy)
2
imperishable
2
incorruptible
2
indelible
2
indomitable(adjective, strength)
2
irresistible(adjective, strength)
2
limitless(adjective, avid, greedy, voracious)
2
resistless(adjective, strength)
2
unconquerable(adjective, strength)
2
unsatisfied(adjective, avid, greedy, wanting, rapacious)
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APASmart Define. (2015). unquenchable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unquenchable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unquenchable thesaurus" https://smartdefine.org/unquenchable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unquenchable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unquenchable/thesaurus/synonyms>.
MLASmart Define. "unquenchable thesaurus" 22 December 2015. Web. 25 September 2026. <https://smartdefine.org/unquenchable/thesaurus/synonyms>