full of angry and cruel criticism
vituperative - abusive
Something ‘vituperative’ is characterized by verbal abuse and hurtful criticism. It expresses a scathing verbal attack in a formal way, and is most commonly used in a professional context in relation to somebody or something that incites strong emotions and a forceful reaction.
The controversial article the journalist wrote led to days of vituperative attacks on social media from a wide range of public figures.
Our manager has a tendency to vituperate other members of staff who do not agree with her.
I hated having to deal with customer complaints. The daily vituperation could be overwhelming at times.