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Definition of 'alertness'


  1. the process of paying close and continuous attention; "wakefulness, watchfulness, and bellicosity make a good hunter"; "vigilance is especially susceptible to fatigue"
       Synonyms: watchfulness wakefulness vigilance
  2. a state of readiness to respond; "alerting was indicated by the desynchronization of the EEG"
       Synonyms: alerting
  3. lively attentiveness
       Synonyms: sharp-sightedness on the qui vive

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