If a person or their actions or comments are vehement, the person has very strong feelings or opinions and expresses them forcefully. She suddenly became very vehement and agitated, jumping around and shouting One vehement critic is Michael Howard + vehemence ve·he·mence He spoke more loudly and with more vehemence than he had intended. + vehemently ve·he·ment·ly Krabbe has always vehemently denied using drugs. showing very strong feelings or opinions vehement opposition/criticism/hostility etc (vehemens)
marked by extreme intensity of emotions or convictions; inclined to react violently; fervid; "fierce loyalty"; "in a tearing rage"; "vehement dislike"; "violent passions"