That has clear or acute eyesight; sharp-eyed, keen-sighted. Cf. bright, adj. 12a.

Keen-sighted; clever. Now dialect.

Keen-sighted; alert and watchful.

Of a person or (later only) the eye: having good vision; that sees clearly or truly.

Having eyes resembling those of an eagle; sharp-eyed, keen-sighted, observant, perceptive. Also figurative of an abstract quality. Cf. eagle eye n.…

Having good or keen sight. Also in extended use: mentally perceptive; showing insight.

Having clear eyes; clear of vision, physical or mental.

Having quick sight. Frequently (and in earliest use) figurative: quick to see or perceive (something).

Possessing (good) sight; sharp-eyed; observant. Obsolete.

Having a quick (quick, adj. 24a) or lively eye; sharp-eyed, keen-sighted, perceptive. Also figurative.

Possessed of or gifted with good sight, clear-sighted, sharp-sighted (sometimes with preceding modifying word). Also (occasionally) simply: sighted…

Having acute or quick sight.

Having clear sight, especially mental; discerning.

keen-sighted, far-seeing; also figurative; cf. eagle-eyed, adj.

(of persons) having eyes like those of a lynx; keen-sighted.

Keen-sighted.

in the same sense.

Of a person: keen-sighted, perceptive. Obsolete.

Of eyes, sight, etc.: keen, sharp; clear-sighted. Chiefly figurative.

Of the eyes, sight, etc.: Resembling that of a lynx, keen; also of persons: lynx-like; sharp-sighted.

having keen or penetrating vision.

Keen of sight; clear-sighted. Obsolete. rare.

keen of sight; transferred observant, penetrating.

having a gimlet-eye.

also keensightedness

having eyes like a hawk's; very keen-sighted.

Originally: designating or belonging to the former order or group Accipitres of birds of prey. In later use spec.: belonging to the family Accipit…

Resembling that of a falcon or hawk, esp. in respect of sight or temperament; sharp-eyed, hawklike.