Vehemence

Part of speech: noun (n.)

1. The quality pr state of being vehement; impetuous force; impetuosity; violence; fury; as, the vehemence.

2. Violent ardor; great heat; animated fervor; as, the vehemence of love, anger, or other passions. I . . . tremble at his vehemence of temper. Addison.