Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
keen-sighted is an adjective meaning "having very keen vision". It carries 2 recorded senses.
having very keen vision
“quick-sighted as a cat”
capable of seeing to a great distance
Definitions, synonyms and semantic relations for keen-sighted come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.