167 entries under adjective topic. ×

15
unrelenting(mean, severe, harsh, cruel)
14
implacable(mean, severe, harsh, cruel)
14
inexorable(mean, severe, harsh, cruel)
14
relentless(mean, severe, harsh, cruel)
12
grim(mean, severe, harsh, cruel)
11
stern(mean, severe, harsh, cruel)
11
unforgiving(mean, severe, harsh, cruel)
9
insatiable(empty, gross, avid, greedy)
8
intransigent(determined, resolute, uncompromising, unshakeable)
6
unyielding(mean, severe, harsh, cruel)
5
adamant(mean, harsh, cruel, determined)
5
adamantine(determined, resolute, uncompromising, unshakeable)
5
avid(desire, empty, gross, greedy)
5
ravenous(desire, empty, gross, avid)
4
gluttonous(desire, empty, gross, avid)
4
merciless(mean, harsh, cruel, determined)
4
rapacious(desire, empty, gross, avid)
4
ruthless(mean, severe, harsh, cruel)
4
voracious(desire, empty, gross, avid)
4
quenchless(avid, greedy, wanting, rapacious)
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APASmart Define. (2015). unappeasable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unappeasable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unappeasable thesaurus" https://smartdefine.org/unappeasable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unappeasable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unappeasable/thesaurus/synonyms>.
MLASmart Define. "unappeasable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unappeasable/thesaurus/synonyms>