630 entries under adjective topic. ×

14
murderous(characteristic, hard, tough, severe)
14
fell(verb, characteristic, animal, mean)
13
bloodthirsty(characteristic, severe, evil, nasty)
13
stormy(severe, rough, intense, passionate)
13
keen(clear, strong, tough, severe)
13
angry(state, characteristic, severe, temper)
13
merciless(mean, hard, tough, evil)
13
passionate(strong, severe, keen, intense)
13
powerful(strong, great, severe, sharp)
13
raging(severe, harsh, intense, passionate)
13
ruthless(animal, mean, hard, tough)
13
tempestuous(violent, animated, heated, reckless)
12
bitter(strong, great, evil, sharp)
12
barbaric(animal, mean, simple, violent)
12
boisterous(severe, nasty, intense, violent)
12
frenzied(strong, difficult, intense, violent)
12
relentless(animal, mean, hard, tough)
12
sharp(mean, strong, great, severe)
12
untamed(simple, severe, violent, wild)
11
acute(strong, great, severe, sharp)
10 years ago|35k views|share |citing 
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>