1
unslakeable
1
unslaked
1
unsparing(adjective, mean, severe, harsh, cruel)
1
unstoppable(adjective, harsh, cruel, determined, fierce)
1
unsympathetic(adjective, mean, severe, harsh, cruel)
1
venal
1
vengeful
1
vindicatory
1
wanton(adjective, mean, severe, harsh, cruel)
1
wilful(adjective, determined, resolute, uncompromising, unshakeable)
1
willful(adjective, determined, resolute, uncompromising, unshakeable)
0
bitter
0
causing dejection(expression, idiom)
0
clamorous(adjective, avid, greedy, wanting, rapacious)
0
clashing
0
cold(adjective, mean, harsh, cruel, vicious)
0
cold-blooded(adjective, mean, harsh, cruel, vicious)
0
coldblooded(unyielding, unforgiving)
0
conflicting
0
contradictory
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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>