213 entries under adjective topic. ×

6
fiendish(animal, mean, cruel, vicious)
6
grim(animal, mean, tough, severe)
6
roughshod
5
atrocious
5
beastly(violent, vicious, fierce, unrestrained)
5
bloody(harsh, unpleasant, violent, cruel)
5
dangerous(strong, tough, severe, intense)
5
inhumane(animal, mean, violent, cruel)
5
merciless(harsh, violent, cruel, vicious)
5
sadistic
4
baleful(harmful, injurious, damaging, deadly)
4
dire(heavy, fear, acute, harmful)
4
dreadful(unpleasant, fear, horrible, disagreeable)
4
formidable(tough, severe, unpleasant, important)
4
harsh
4
heartless(harsh, violent, cruel, vicious)
4
sanguineous(aper, demoniac, murderous, annihilative)
4
terrible(strong, severe, intense, unpleasant)
4
unrelenting(animal, mean, harsh, violent)
3
demoniac(harsh, violent, cruel, vicious)
10 years ago|18k views|share |citing 
APASmart Define. (2016). fell thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fell/thesaurus/synonyms
ChicagoSmart Define. 2016. "fell thesaurus" https://smartdefine.org/fell/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, fell thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fell/thesaurus/synonyms>.
MLASmart Define. "fell thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/fell/thesaurus/synonyms>