3
relentless(adjective, strong, severe, difficult, intense)
3
serious(adjective, keen, warm, intense, passionate)
3
sincere(adjective, keen, warm, intense, passionate)
3
stimulated(adjective, strong, difficult, intense, passionate)
3
stirring(adjective, strong, difficult, intense, passionate)
3
strenuous(adjective, difficult, intense, energetic, lively)
3
trenchant(adjective, strong, intense, powerful, deep)
3
trigger-happy
3
uncontrollable(adjective, strong, severe, intense, passionate)
3
unrestrained(adjective, intense, passionate, violent, cruel)
3
uproarious(adjective, strong, passionate, violent, excited)
3
vociferous(adjective, strong, loud, piercing, insistent)
2
abrupt(adjective, keen, violent, violence, anxious)
2
abusive(adjective, violent)
2
acid(adjective, strong, intense, powerful, deep)
2
acrid
2
acrimonious(animated, frenzied, impassioned)
2
active(adjective, strong, energetic, violent, lively)
2
afire(adjective, keen, intense, passionate, violent)
2
aflame(adjective, intense, violent, hot, spirited)
11 years ago|14k views|share |citing 
APASmart Define. (2015). vehement thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/vehement/thesaurus/synonyms
ChicagoSmart Define. 2015. "vehement thesaurus" https://smartdefine.org/vehement/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, vehement thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/vehement/thesaurus/synonyms>.
MLASmart Define. "vehement thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/vehement/thesaurus/synonyms>