5
pestilential(adjective, bad, evil, harmful, injurious)
5
severe(adjective, violent, brutal, ferocious, dangerous)
5
splenetic(adjective, mean, nasty, malicious, hurtful)
5
sulphurous
4
bitchy(adjective, slang, attitude, spiteful)
4
cutting
4
infectious
4
maleficent(adjective, malevolence)
4
poison(adjective, help)
4
scathing
3
bad
3
barbarous(adjective, strong, violent, brutal, ferocious)
3
biting(adjective, discourtesy)
3
brutal(adjective, strong, violent, ferocious, menacing)
3
deathly(adjective, dangerous)
3
dirty(adjective, mean, nasty, hateful, malicious)
3
furious(adjective, strong, severe, intense, violent)
3
grim(adjective, mean, violent, cruel, hateful)
3
malefic(adjective, hateful)
3
sardonic
11 years ago|13k views|share |citing 
APASmart Define. (2015). venomous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/venomous/thesaurus/synonyms
ChicagoSmart Define. 2015. "venomous thesaurus" https://smartdefine.org/venomous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, venomous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/venomous/thesaurus/synonyms>.
MLASmart Define. "venomous thesaurus" 11 September 2015. Web. 26 September 2026. <https://smartdefine.org/venomous/thesaurus/synonyms>