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Definition of vigilance:

  1. Guard; watch.
  2. The quality or state of being vigilant; forbearance of sleep; wakefulness.
  3. Watchfulness in respect of danger; care; caution; circumspection.


on the qui vive, trouble, watch, acuity, watchfulness, management, concern, sleeplessness, vigil, alerting, alertness, perplexity, solicitude, oversight, attention, wakefulness, direction, lookout, sharp-sightedness, forethought, precaution, weather eye, charge, anxiety, worry.

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