Synonyms for

Alert

Verb / ʌˈlɜ:t / Another word for alert — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Watchful and ready to respond quickly.

Synonyms & similar words

quivive merry alerting brisk zippy warningsignal watchful rattling awake alarm alarum alive lively spanking unalert snappy awake attentive vigilant observant watchful cautious sharp keen quick responsive ready prepared wide-awake open-eyed alerted

Synonyms by register

Formal

vigilant watchful attentive circumspect

Informal

on the ball sharp switched on wise to

Literary

wakeful forewarned sentinel

Antonyms

unaware ignorant complacent heedless oblivious careless unconcerned

Common collocations

  • alert to danger
  • alert for opportunities
  • stay alert
  • highly alert
  • alert system
  • alert status
  • alert the authorities
  • alert message

Word family

noun alertness
verb alert
adjective alert
adverb alertly

Usage note

As an adjective, 'alert' often implies a readiness to notice or act. It can also be used as a verb meaning to warn someone of a danger or threat.

Example sentences

  1. 1. I am always alert when I'm walking in the woods.
  2. 2. The guard dog was very alert and barked loudly when he saw someone approaching.
  3. 3. The teacher was alert to any signs of cheating during the test.
  4. 4. The firefighters were alert and ready to respond to any emergency.
  5. 5. The hiker was alert for any signs of danger on the trail.

Quotes

  • Be alert! The world needs more lerts. - Unknown
  • The price of freedom is eternal vigilance. - Thomas Jefferson
  • Stay alert, stay alive. - Anonymous

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