Marked by extreme intensity of passionate emotion or conviction; inclined to react violently; fervid
As a vehement socialist I abhor the level of arrogant greed that personifies America
by -G- July 15, 2005
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Forceful expression, strong energy, violent feeling.
She vehemently replied, "I SAID YO ASS BETTA GET THE FUCK OUT!"

And he was like, "Damn girl."
by vehement October 14, 2004
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Extreme, bordering on dangerous.
Barney's vehement arguing nearly got him kicked out of the neighborhood debate club.
by Diggity Monkeez May 21, 2005
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