cautious, careful, watchful

The following video provides you with the correct English pronunciation of the word "open eyed", to help you become a better English speaker.

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Adjective
1. 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"
(synonym) argus-eyed, vigilant, wakeful, watchful
(similar) alert

(a.)
With eyes widely open; watchful; vigilant.
  

adj.
ہوشيار, چوکس, خبردار

Synonyms and related words:
Argus-eyed, advertent, agape, aghast, agog, alert, all agog, all ears, all eyes, amazed, assiduous, astonished, astounded, at gaze, attentive, aux aguets, aware, awed, awestruck, beguiled, bewildered, bewitched, breathless, burning with curiosity, captivated, careful, concentrated, confounded, conscious, consumed with curiosity, curious, custodial, diligent, dumbfounded, dumbstruck, eagle-eyed, earnest, enchanted, enraptured, enravished, enthralled, entranced, fascinated, finical, finicking, finicky, flabbergasted, gaping, gauping, gazing, ghoulish, gossipy, guarded, hawk-eyed, heedful, hypnotized, in awe, in awe of, inquiring, inquisitive, intense, intent, intentive, interested, itchy, keen-eyed, lidless, lost in wonder, marveling, mesmerized, meticulous, mindful, morbid, morbidly curious, nice, niggling, observant, observing, on guard, on the ball, on the job, on the lookout, on the watch, open-eared, openmouthed, overcurious, overwhelmed, popeyed, prudent, prurient, puzzled, quizzical, rapt in wonder, regardful, scopophiliac, sharp-eyed, sleepless, spellbound, staggered, staring, stupefied, supercurious, surprised, thunderstruck, under a charm, unsleeping, untold, vigilant, voyeuristic, wakeful, wary, watchful, wide-awake, wide-eyed, with open eyes, wonder-struck, wondering