intellectual
adjective
°Belonging to, or performed by, the intellect; mental; as, intellectual powers, activities, etc.
°Endowed with intellect; having the power of understanding; having capacity for the higher forms of knowledge or thought; characterized by intelligence or mental capacity; as, an intellectual person.
noun
°An intelligent person, someone interested in intellectual matters.
°(archaic) The intellect or understanding; mental powers or faculties.