cerebral

Of or relating to the brain, cerebrum, or cerebral cortex.

Intellectual rather than emotional or physical.

Certainly, “Capital” is a cerebral read and the dangers of the world Marx lived in are not all the same as ours.

His cerebral candidacy, inspired by European and North American political and economic philosophers, and his very appearance, with his light-colored skin, trim physique and penchant for preppy sweaters, contrasted with an electorate largely made up of impoverished Quechua-speaking people and Spanish-speaking mestizos.

Retroflex.