invective

Short definition from Wiktionary

Noun

1. 1
   An expression which inveighs or rails against a person.
2. 2
   A severe or violent censure or reproach.
3. 3
   Something spoken or written, intended to cast shame, disgrace, censure, or reproach on another.
4. 4
   A harsh or reproachful accusation.

Adjective

1. 1
   Characterized by invection or railing.