449 entries under adjective topic. ×

2
solid
2
sour(hard, tough, severe, sharp)
2
stable(persistent, rigid, inflexible, obstinate)
2
stony-hearted
2
stringent(tough, severe, harsh, solid)
2
strong(hard, tough, cold, sturdy)
2
tyrannical(hard, tough, evil, nasty)
2
unalterable(close, set, severe, harsh)
2
uncharitable
2
undeviating(severe, harsh, solid, cruel)
2
unending(persistent, constant, continuous, endless)
2
unpitying(mean, severe, harsh, cruel)
2
unvarying(persistent, constant, continuous, endless)
2
vindictive(mean, hard, tough, severe)
1
acrid(hard, severe, sharp, flat)
1
aloof(tough, firm, fixed, rigid)
1
antagonistic(tough, harsh, cruel, grim)
1
asperous(hard, severe, sharp, flat)
1
assertive
1
avaricious(hard, tough, harsh, cruel)
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APASmart Define. (2015). unrelenting thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unrelenting/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrelenting thesaurus" https://smartdefine.org/unrelenting/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unrelenting thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unrelenting/thesaurus/synonyms>.
MLASmart Define. "unrelenting thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/unrelenting/thesaurus/synonyms>