痛詆

痛诋
tòngdǐ
  1. (literary) to bitterly attack; to scathingly denounce
  2. (literary) to spare no effort to slander or insult
  3. to bitterly attack; to scathingly denounce
  4. to spare no effort to slander or insult

Wiktionary

Entry Composition

1 痛 tòng
  1. ache
  2. pain
  3. sorrow
  4. deeply
  5. thoroughly
2 詆 dǐ
  1. to defame
  2. to slander