sharp-sighted vs argus-eyed

sharp-sighted and argus-eyed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sharp-sighted	No	Yes	No	No
argus-eyed	No	Yes	No	No

As adjectives, sharp-sighted and argus-eyed are synonyms defined as:

Other synonyms of sharp-sighted include hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed.

sharp-sighted (adjective)	argus-eyed (adjective)
keenly perceptive or alert	carefully observant or attentive; on the lookout for possible danger
having very keen vision	having very keen vision