noun, plural men·tal·i·ties.
- mental capacity or endowment: a person of average mentality.
- the set of one’s mind; view; outlook: a liberal mentality.
noun plural -ties
- the state or quality of mental or intellectual ability
- a way of thinking; mental inclination or characterhis weird mentality
n.1690s, from mental (adj.) + -ity. n.
- The sum of a person’s intellectual capabilities or endowment.