In Buddhism, especially the Chan (Zen) traditions, non-abidance (in Sanskrit: apratiṣṭhita, with the a- prefix, lit. ‘unlimited’, ‘unlocalized’) is the practice of avoiding mental constructs during daily life. That is, other than while engaged in meditation (Zazen).

Some schools of Buddhism, especially the Mahāyāna, consider apratiṣṭhita-nirvāṇa ("non-abiding cessation") to be the highest form of Buddhahood, more profound than pratiṣṭhita-nirvāṇa, the ‘localized’, lesser form. According to Robert Buswell and Donald Lopez, apratiṣṭhita-nirvāṇa is the standard Mahayana view of Buddhahood, which enables them to freely return to samsara in order to help sentient beings, while still remaining in nirvāṇa and being a buddha via the usage of the nirmanakaya and sambhogakaya.