The Collaborative International Dictionary
Argus-eyed
Argus-eyed \Ar"gus-eyed\, a. Extremely observant; watchful; sharp-sighted.
Wiktionary
argus-eyed
a. Ever vigilant.
WordNet
argus-eyed
adj. having very keen vision; "quick-sighted as a cat" [syn: hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted]
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" [syn: open-eyed, vigilant, wakeful, watchful]