vehemency 1. Vigorous impetuosity; fury. 2. Violence; great force; properly, force derived from velocity; as the vehemency of wind, but it is applied to any kind of forcible action; such as, to speak with vehemency. 3. Violent ardor; great heat; animated fervor; such as, the vehemency of love or affection; the vehemency of anger or other passion.... Found on http://www.wordinfo.info/words/index/info/view_unit/2270/2