Noah Webster
Intellectual
INTELLECT'UAL, adjective
1. Relating to the intellect or understanding; belonging to the mind; performed by the understanding; mental; as intellectual power or operations.
2. Ideal; perceived by the intellect; existing in the understanding; as an intellectual scene.
3. Having the power of understanding; as an intellectual being.
4. Relating to the understanding; treating of the mind; as intellectual philosophy, now sometimes called mental philosophy.
INTELLECT'UAL, noun The intellect or understanding. [Little Used.]