From Rigpa Wiki
Nihilism (Skt. uccheda dṛṣṭi; Wyl. chad lta or Skt. ucchedānta; Wyl. chad mtha') is the belief in non-existence, which is one of the two extremes into which most philosophical schools fall. The term is applied to the view that things lack ultimate existence, and also to the denial of the law of cause and effect or past and future lives.
- Annihilation (Dharmachakra Translation Committee)