Note: Under is often used in composition with a verb to indicate lowness or inferiority in position or degree, in the act named by the verb; as, to underline; to undermine; to underprop.

UNDER
Un"der, a.

Defn: Lower in position, intensity, rank, or degree; subject; subordinate; — generally in composition with a noun, and written with or without the hyphen; as, an undercurrent; undertone; underdose; under-garment; underofficer; undersheriff. Under covert (Zoöl.), one of the feathers situated beneath the bases of the quills in the wings and tail of a bird. See Illust. under Bird.

UNDERACT
Un`der*act", v. t.

Defn: To perform inefficiently, as a play; to act feebly.

UNDERACTION
Un"der*ac`tion, n.

Defn: Subordinate action; a minor action incidental or subsidiary to the main story; an episode. The least episodes or underactions . . . are parts necessary or convenient to carry on the main design. Dryden.

UNDERACTOR
Un"der*ac`tor, n.

Defn: A subordinate actor.

UNDER-AGE
Un"der-age`, a.