Of or relating to mentalism

A practitioner of mentalism. / (UK, slang) An insane person.

Difficult and complex logical thought processes, especially when performed effortlessly. / (derogatory) Inventive, complex arguments used to justify what is otherwise unjustifiable.

plural of mentalist

(idiomatic) An apophasis used by a speaker to introduce, despite claiming not to address, a given point of discussion.

(law, but also seeing wider use) Insane; not of sound mind; not in control of oneself.

The tendency for groups of individuals to act together without planned direction.

plural of mental hospital

plural of mentality

Having a psychological disorder.