An expression which inveighs or rails against a person; a severe or violent censure or reproach; something uttered or written, intended to cast opprobrium, censure, or reproach on another; a harsh or reproachful accusation; followed by against, having reference to the person or thing affected; as, an invective against tyranny
Invective is rude and unpleasant things that people shout at people they hate or are angry with. A woman had hurled racist invective at the family. rude and insulting words that someone says when they are very angry (invectif, from , from invehere; INVEIGH)