argus-eyed
1. having very keen vision - quick-sighted as a cat • Syn: hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted • Similar to: sighted • Derivationally related forms: sharp-sightedness (for: sharp-sighted) 2. 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 • Similar to: alert, watchful • Derivationally related forms: wakefulness (for: wakeful), vigilance (for: vigilant)
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