- nihilism - a revolutionary doctrine that advocates destruction of the social system for its own sake
--1 is a kind of doctrine, philosophy, philosophical system, school of thought, ism
- nihilistic delusion, nihilism - the delusion that things (or everything, including the self) do not exist; a sense that everything is unreal
--2 is a kind of delusion, psychotic belief
- nihilism - complete denial of all established authority and institutions
--3 is a kind of anarchy, lawlessness
- nihilistic delusion, nihilism - the delusion that things (or everything, including the self) do not exist; a sense that everything is unreal