Thesaurus.com
synonyms
  • definitions

alert

see definition of alert
  • adjattentive, lively
  • nounwarning
  • verbwarn
Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
Relevance
A-Z
Length
-
+

Synonyms for alert

adj attentive, lively
  • active
  • bright
  • careful
  • intelligent
  • observant
  • perceptive
  • sharp
  • vigilant
  • wary
  • watchful
  • wired
  • wise
  • hip
  • jazzed
  • quick
  • ready
  • spirited
  • all ears
  • cagey
  • circumspect
  • clever
  • fast on the draw
  • good hands
  • heads up
  • heedful
  • on guard
  • on one's toes
  • on the ball
  • on the job
  • on the lookout
  • on the qui vive
  • psyched up
  • switched on
  • wide-awake
  • with it

Antonyms for alert

  • careless
  • dull
  • foolish
  • ignorant
  • inattentive
  • incautious
  • indifferent
  • indiscreet
  • lazy
  • negligent
  • stupid
  • thoughtless
  • unaware
  • unintelligent
  • unobservant
  • slow
  • uneducated
  • asleep
  • drowsy
  • lethargic
  • sluggish
  • weary
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

More words related to alert

able

adjective. capable of performing; having an innate capacity

ablest

adjective. capable of performing; having an innate capacity

active

adjective. very involved in activity

agile

adjective. physically or mentally nimble, deft

alarm

noun. warning, signaling device

alarum

noun. alarm
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
  • PREVIOUS
  • NEXT