- having keen eyes; vigilant; watchful.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for argus-eyed
And that was the question that stared, Argus-eyed, at Jane Blair.The Innocent Adventuress
Mary Hastings Bradley
Italian brothers are very watchful and Argus-eyed about their sisters.To Leeward
F. Marion Crawford
Her old nurse was Argus-eyed; and our meetings were such as only lovers can effect.Carmen Ariza
Charles Francis Stocking
Hence 'argus-eyed', applied to one who is exceedingly watchful.
It was the on-coming of a grisly, striped, argus-eyed multiped, with fifty heads.The Red Debt
- keen-sighted; observant; vigilant