sharp eyed

from Moby Thesaurus II by Grady Ward, 1.0

35 Moby Thesaurus words for "sharp eyed":
      Argus-eyed, alert, all ears, all eyes, attentive, aux aguets,
      aware, cat-eyed, clear-eyed, clear-sighted, custodial, eagle-eyed,
      eye-minded, farseeing, farsighted, ferret-eyed, guarded, hawk-eyed,
      keen, keen-eyed, lidless, observant, on guard, on the lookout,
      on the watch, open-eyed, prudent, sharp, sharp-sighted, sleepless,
      telescopic, vigilant, wary, watchful, with open eyes