英日字典: argus-eyed
    The argus-eyed has 2 Senses.
-  argus-eyed, vigilant, wakeful, open-eyed
-  目ざとい
- 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"
- 慎重に目を配るあるいは注意深い