on the alert Synonym

safety, protection, defense, safeguard, assurance, shield, guard, preservation, security measures, security system, security protocol, security service, security detail, security force, security team, security personnel, security officer, security guard, security agent, security specialist, security expert, security consultant, security advisor, security analyst, security manager, security director, security chief, security head, security leader, security supervisor, security coordinator, security monitor, security watch, security patrol, security check, security inspection, security review, security audit, security assessment, security evaluation, security examination, security survey, security scan, security test, security verification, security validation, security clearance, security authorization [x]

conscious, cognizant, mindful, alert, attentive, vigilant, observant, perceptive, informed, knowledgeable, apprised, sentient, sensible, awake, heedful, wary, watchful, alive, responsive, acquainted, familiar, enlightened, savvy, tuned in, hip to [x]

watch-for, keep-an-eye-out-for, be-alert-for, beigilant-for, be-watchful-for, be-on-guard-for, be-aware-of, be-wary-of, be-cautious-of, be-on-the-alert-for, be-on-the-watch-for, be-on-the-hunt-for, be-on-the-search-for, be-on-the-scout-for, be-on-the-qui-vive-for [x]

care, prudence, wariness, circumspection, vigilance, alertness, heedfulness, attentiveness, forethought, discretion, guardedness, watchfulness, carefulness, mindfulness, deliberation, consideration [x]

caution, alert, notice, admonition, forewarning, heads-up,, alarm, signal, advisory, caveat, tip-off, red flag, wake-up call, word of warning, sign, indication, hint, threat, menace, danger signal, yellow flag, warning sign, warning signal, premonition, portent, harbinger, augury, presage, omen, foretoken, forecast, prediction, prophecy, heads-up warning, early warning, advance warning, premonitory sign, cautionary notice, danger notice, risk alert, hazard warning, safety alert, security warning, advisory notice, alert notice, danger alert, threat alert, hazard alert [x]

attentive, mindful, observant, alert, watchful, vigilant, cautious, careful, aware, conscientious, perceptive, considerate, circumspect, wary, prudent, discerning, heedful [x]

alert, vigilant, attentive, watchful, observant, ready, prepared, cautious, aware, sharp, quick, responsive, nimble, agile, awake, perceptive, mindful, wary, guarded, heedful, careful, prudent, circumspect, on guard, on the lookout, on the alert, on the ball, on the qui vive, on the watch [x]

alert, conscious, aware, wakeful, vigilant, attentive, roused, aroused, up, stirring, active, lively, cognizant, observant, perceptive, responsive, sharp, bright, quick, on the ball, on one's toes, on the alert, on guard, watchful, sleepless, unsleeping, wide-awake, clear-headed, clear-eyed, clear-sighted [x]

alert, vigilant, watchful, attentive, observant, sleepless, aware, conscious, perceptive, sharp, wary, heedful, mindful, on guard, on the lookout, on the alert, wide-awake, quick-eyed, eagle-eyed, sharp-eyed, clear-eyed, open-eyed, unsleeping, insomniac, restless, wakeful [x]

alert, vigilant, watchful, attentive, observant, aware, conscious, sharp, perceptive, quick, responsive, on guard, on the ball, on the lookout, on one's toes, ready, prepared, mindful, heedful, wary, sleepless, wakeful, unsleeping, bright-eyed, clear-headed, sharp-eyed, eagle-eyed, quick-witted, sharp-witted, on the alert, on the qui vive [x]

vigilant, watchful, alert, observant, attentive, on guard, on the watch, on the alert, wary, cautious, eagle-eyed, sharp-eyed, wide-awake, on one's toes, on the qui vive, on the ball, quick off the mark, ready, prepared, primed, aware, heedful, mindful, circumspect, careful, awake, sleepless, unsleeping, wakeful, on the lookout [x]

advance notice, forewarning, heads-up, early warning, preliminary notice, advance alert, prior notice, pre-warning, advance notification, early alert, advance intimation, pre-notification, advance caution, prior alert, early notice, advance heads-up, pre-alert, advance advisory, prior intimation, early notification [x]

alert, forewarning, heads-up, notice, notification, caution, advance notice, advance warning, premonition, red flag, signal, tip-off, wake-up call, advisory, alarm, warning sign, heads-up alert, preliminary warning, prior warning, early alert, early notice, early signal, early indication, advance alert, advance signal, advance indication [x]

alert, attentive, sharp, quick, perceptive, aware, vigilant, responsive, observant, ready, prepared, focused, keen, astute, nimble, agile, smart, savvy, quick-witted, proactive [x]

alert, vigilant, watchful, attentive, cautious, wary, observant, prepared, ready, mindful, aware, guarded, circumspect, heedful, leery, suspicious, awake, sharp, perceptive, responsive, quick, eagle-eyed, sharp-eyed, on the lookout, on the alert, on the watch, on the qui vive, on one's toes, on the ball, on the job, on the case [x]