RichThesaurus
discerning
vs
quick-sighted
discerning
adj
Of keen insight or good judgement; perceptive.
noun
discernment
quick-sighted
adj
Keenly perceptive.
Having keen vision.
How often have the words
discerning
and
quick-sighted
occurred in a corpus of books?
(source:
Google Ngram Viewer
)