Synonyms of 'alert'

active, admonish, advertent, advise, agile, agog, alarm, alarm clock, alarum, alive, all clear, animated, apt, arouse, assiduous, attentive, awake, aware, beacon, brainy, breathe, Bright, brilliant, burglar alarm, buzz, buzzer, cant, careful, caution, cautious, clear-sighted, clearheaded, clever, concentrated, confide, conscious, decisive, diligent, earnest, expeditious, fiery cross, finical, finicking, finicky, fire alarm, foghorn, fog bell, forewarn, frighten, frisky, gay, heedful, hooter, Horn, immediate, instant, instantaneous, intense, intent, Keen, klaxon, knowing, lighthouse, lively, lookout, Mayday, mercurial, meticulous, mindful, nice, nimble, notify, observant, open-eyed, prompt, punctual, quick, quick-witted, ready, regardful, sharp, signal, siren, sleepless, smart, speedy, spirited, sprightly, spry, startle, summary, swift, threaten, tip, unblinking, unwinking, up, vigilant, vivacious, warn, warning, wary, watchful, whisper, whistle, wide-awake, wakeful, tocsin, niggling