Dictionary & Thesaurus

1.

(satellite adjective) carefully observant or attentive; on the lookout for possible danger; "a policy of open-eyed awareness"; "the vigilant eye of the town watch"; "there was a watchful dignity in the room"; "a watchful parent with a toddler in tow"

Synonyms: open-eyed, vigilant, wakeful, watchful

2.

(satellite adjective) having very keen vision; "quick-sighted as a cat"

Synonyms: hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted