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alert

/əˈlɝt/noun, verb, adjective2 syllables

Alert means: engaged in or accustomed to close observation.

Synonyms for alert30

noun, as in an automatic signal (usually a sound) warning of danger

alarm, warning signal, alarum

noun, as in condition of heightened watchfulness or preparation for action

qui vive

noun, as in a warning serves to make you more alert to danger

alerting

verb, as in warn or arouse to a sense of danger or call to a state of preparedness

adjective, as in engaged in or accustomed to close observation

watchful, argus-eyed, open-eyed, vigilant, wakeful, fly, heads-up, wide-awake, lidless, sleepless, awake, lively, wary

adjective, as in quick and energetic

brisk, lively, merry, rattling, snappy, spanking, zippy, energetic

adjective, as in mentally perceptive and responsive

alive, awake, aware, cognizant, cognisant

also used for alert

Includes material from Wiktionary, CC BY-SA 4.0.

Opposites of alert

unalert

What does alert mean?7

adjective

1

engaged in or accustomed to close observation“caught by a couple of alert cops”

2

quick and energetic“a brisk walk in the park”

3

mentally perceptive and responsive“an alert mind”

noun

1

an automatic signal (usually a sound) warning of danger

2

condition of heightened watchfulness or preparation for action“bombers were put on alert during the crisis”

3

a warning serves to make you more alert to danger

verb

1

warn or arouse to a sense of danger or call to a state of preparedness“The empty house alarmed him”

Definitions from the Open English WordNet, CC BY 4.0.

What rhymes with alert?17

one syllable

Show 40 near rhymes

Alert in a sentence

  • Pietro sat around for an hour, nervous and on high alert.Amastan
  • In alert hands, the vote can be an effective surgical instrument.carlosalberto
  • A tsunami is coming, so please be on the alert.CK
  • As she doesn't want to be cheated again, she's always on the alert.AlanF_US
  • He didn't want to be cheated again, and was always on the alert.astyng
  • Unlike the brain, the stomach alerts you when it is empty.Aznay
  • The climber stayed alert while climbing the precipice.unknown
  • I feel more alert after drinking a cup of coffee.CK

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of alert

as a noun

plural
alerts

as a verb

past tense
alerted
present participle
alerting
third-person singular
alerts
past participle
alerted