noun

1. An expression which inveighs or rails against a person.

2. A severe or violent censure or reproach.

3. Something spoken or written, intended to cast shame, disgrace, censure, or reproach on another.

adjective

1. Characterized by invection or railing.

   “Tom's speeches became diatribes — each more invective than the last.”

Synonyms: abusive, critical, denunciatory, satirical, vitriolic, vituperative