sharp-sighted russian

• зо́ркий

  sharp-eyed

  observant

  sharp-sighted

  vigilant

• глаза́стый

  big-eyed, goggle-eyed, pop-eyed, sharp-eyed, quick-sighted

• острогла́зый

  sharp-eyed, sharp-sighted, keen-eyed

• зо́ркость

  vigilance, sharp-sightedness