An intelligent, learned person, especially one who discourses about learned matters.
Relating to the understanding; treating of the mind.
Suitable for exercising one's intellect; perceived by the intellect
Pertaining to, or performed by, the intellect; mental or cognitive.
Endowed with intellect; having a keen sense of understanding; having the capacity for higher forms of knowledge or thought; characterized by intelligence or cleverness
Someone who constructs theories, especially in the arts or sciences.