630 entries under adjective topic. ×

6
great(strong, tough, sharp, harsh)
6
infuriated(violent, mad, vicious, unreasonable)
6
malign(animal, mean, severe, violent)
6
primitive(severe, rough, violent, cruel)
6
remorseless(animal, mean, harsh, violent)
6
sanguinary(hard, tough, harsh, violent)
6
scrappy(nasty, determined, hostile, spirited)
6
tigerish(severe, violent, cruel, vicious)
6
uncivilized(simple, severe, awful, violent)
6
unmerciful(mean, hard, tough, severe)
6
virulent(severe, evil, nasty, harsh)
5
dire(terrible, ominous)
5
fervid(clear, strong, tough, severe)
5
hostile(mean, severe, sharp, nasty)
5
mad(cruel, vicious, wicked, animated)
5
agonizing(strong, sharp, intense, powerful)
5
antagonistic(mean, severe, sharp, nasty)
5
bowelless
5
combative(nasty, determined, hostile, spirited)
5
contentious(nasty, determined, hostile, spirited)
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APASmart Define. (2016). fierce thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fierce/thesaurus/synonyms
ChicagoSmart Define. 2016. "fierce thesaurus" https://smartdefine.org/fierce/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, fierce thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fierce/thesaurus/synonyms>.
MLASmart Define. "fierce thesaurus" 28 March 2016. Web. 24 September 2026. <https://smartdefine.org/fierce/thesaurus/synonyms>