Definition of alertness in English:



  • The quality of being alert.

    ‘nothing could escape the steel trap of my alertness’
    ‘a lack of mental alertness’
    • ‘Fire has caused £30,000 damage to a woollen waste mill, and it could have been worse but for the alertness of a teenage girl.’
    • ‘Anything related to Taiwan's survival should be heeded with special alertness.’
    • ‘Travelers to such destinations practice extra alertness, precaution and prudence.’
    • ‘Nonetheless, he said, police would maintain a high degree of alertness.’
    • ‘Clydebank looked as though they had done enough for another valuable point, but they reckoned without the alertness of Alan Neil.’
    vigilance, awareness, watchfulness, attentiveness, attention, circumspection, wariness, chariness, heedfulness, canniness, discretion, prudence
    quick-wittedness, quick thinking, quickness of mind, sharpness, quickness, keenness, perceptiveness, responsiveness, agility, acuteness, acuity, shrewdness, astuteness, intelligence, insight, presence of mind
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