Synonyms for Quick-sighted (same or very similar meaning)
WordNet sense 1 (having very keen vision):
hawk-eyed, lynx-eyed, sharp-eyed, argus-eyed, keen-sighted, sharp-sighted
WordNet sense 2 (able to see):
sighted
WordNet sense 3 (having the ability to perceive or understand; keen in discernment):
perceptive
From the ODE community, based on WordNet
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