|1.||a complete denial of all established authority and institutions|
|2.||philosophy an extreme form of scepticism that systematically rejects all values, belief in existence, the possibility of communication, etc|
|3.||a revolutionary doctrine of destruction for its own sake|
|4.||the practice or promulgation of terrorism|
|[C19: from Latin nihil nothing + |
nihilism ni·hil·ism (nī'ə-lĭz'əm, nē'-)
The belief that destruction of existing political or social institutions is necessary for future improvement.
A delusion, experienced in some mental disorders, that the world or one's mind, body, or self does not exist.