open-eyed vs vigilant

open-eyed and vigilant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
open-eyed	No	Yes	No	No
vigilant	No	Yes	No	No

As adjectives, open-eyed and vigilant are synonyms defined as:

open-eyed and vigilant: carefully observant or attentive; on the lookout for possible danger

Other synonyms of open-eyed include argus-eyed, wakeful, watchful.

open-eyed (adjective)	vigilant (adjective)
carefully observant or attentive; on the lookout for possible danger	carefully observant or attentive; on the lookout for possible danger