WordWeb Online

1. (sometimes followed by 'of') having or showing knowledge or understanding or realization or perception
   "became aware of her surroundings"; "aware that he had exceeded the speed limit"; "was aware of his opponent's hostility";
   - cognizant, cognisant [Brit]
    
2. Bearing in mind; attentive to
   "ever aware of her health";
   - mindful

See also: alert, alive, awake, awareness, careful, cognisance [Brit], cognizance, conscious, consciousness, evocative, heedful, heedfulness, knowingness, mindfulness, on the ball, redolent, remindful, reminiscent, resonant, sensible, sensitive, witting

Antonym: mindless

Encyclopedia: Aware