caustic

adjective
1
able to destroy or dissolve(= remove or destroy by a chemical process) other substances
خورنده, سوزاننده, گدازنده
synonym corrosive
2
critical in a bitter or sarcastic way
نیش‌دار, طعنه‌آمیز, کنایه‌آمیز, تند و تیز, گزنده
caustic comments/wit
Her speech was a caustic attack on government officials.
synonym scathing