wide-awake Synonyms

unsleeping keeping a weather eye on wary wakeful waking vigilant spirited sleepless sharp regardful ready quick prompt watchful on the qui vive tenty on the lookout on the job on the alert on guard on the ball insomniac hypervigilant hyperalert heads up broad awake open-eyed observant cautious careful bright aware awakened awake attentive argus-eyed alive alert active circumspect conscious deep nimble lively keen interested insomnious heedful engrossed engaged