苦毒

kǔdú
  1. (literary) pain; suffering
  2. (literary) to abhor; to detest
  3. pain; suffering
  4. to abhor; to detest

Wiktionary

Entry Composition

1 苦 kǔ
  1. bitter
  2. hardship
  3. pain
  4. to suffer
  5. to bring suffering to
  6. painstakingly
=2 毒 dú
  1. poison
  2. to poison
  3. poisonous
  4. malicious
  5. cruel
  6. fierce
  7. narcotics
=2 毒 dài only used in 毒冒, an alternative form of 玳瑁 (dàimào)