sharp-sightedness

sharp-sight·ed

(shärp′sī′tĭd)adj.1. Having keen eyesight.2. Keenly perceptive or alert.

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sharp′-sight′ed·ly adv.sharp′-sight′ed·ness n.

Thesaurus

Noun	1.	sharp-sightedness - sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)acuity, visual acuityvisual modality, visual sense, vision, sight - the ability to see; the visual faculty20/20, twenty-twenty - normal visual acuity, as measured by the ability to read charts at a distance of 20 feetoxyopia - unusually acute vision
	2.	sharp-sightedness - lively attentiveness on the qui vive, alertnessattentiveness - the trait of being observant and paying attention