vigilant

vigilant

adjective

Definition of VIGILANT

paying close attention usually for the purpose of anticipating approaching danger or opportunity <the night watchman, who was usually vigilant, apparently dozed off and didn't notice the vandals sneaking in>

Synonyms Argus-eyed, attentive, awake, observant, open-eyed, tenty (also tentie) [Scottish], vigilant, watchful, wide-awake

Related Words alive, aware, conscious, sensitive; cognizant, heedful, keen, mindful, observing, regardful, sharp, sharp-eyed; hyperalert, hypervigilant, sleepless, wakeful; careful, cautious, chary, wary; prepared, ready

Near Antonyms absent, absentminded, absorbed, abstracted, daydreaming, dazed, distracted, dreaming, dreamy, engrossed, faraway, insensible, oblivious, preoccupied; sleeping, unaware, unconscious, unknowing, unwitting; careless, heedless, inattentive, unheeding, unmindful, unthinking, unwary; unprepared, unready

Antonyms asleep