(informal) A stupid person.

plural of mental aberration

A deviation in mental function.

The act of holding back some word or clause which is necessary to convey fully the meaning really intended by the speaker, distinct from equivocation.

plural of mental reservation

plural of crab mentality

(idiomatic) An attitude characterized by self-interest and a willingness to prioritize personal benefit or ambition, often above the welfare of an organization or community; a willingness to elbow (verb) past others.

Synonym of mental gymnastics

A collective feeling of victimization and defensiveness, in which a group of people believe themselves to be constantly attacked, oppressed, or isolated in the face of the negative intentions of the rest of the world.

(parapsychology) The practice of communicating with ghosts using telepathy.