25B6; adjective OBSERVANT, perceptive, eagle-eyed, hawk-eyed, keen-eyed, gimlet-eyed; watchful, vigilant, alert, on the lookout; informal beady-eyed.
SHARP-EYED
Meaning of SHARP-EYED in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012