abusive or venomous language used to express blame or bitter deep-seated ill will His vitriol spewed forth from a deep-seated racisim that consumed his whole life. Definition of Vitriol mean-spirited and venomous criticism or talk Examples of Vitriol in a sentence During the town-meeting, angry citizens met the mayor spewing vitriol. Every time she gets upset, the mean-spirited woman lets vitriol flow from her mouth. The employee was asked to refrain from posting vitriol or critical talk about his workplace on social media. Anti-Muslim vitriol ran from the hateful pastor\\'s lips like venom from a snake\\'s tongue. Even though she apologized for her harsh comments, the woman\\'s sister could not forgive her for the vitriol she spewed in anger.