Vigilant meaning

vĭj'ə-lənt
The definition of vigilant is watchful and alert.

An example of something vigilant is a guard dog.

adjective
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On the alert, as for danger or error; watchful.
adjective
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Staying watchful and alert to danger or trouble.
adjective
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Watchful, especially for danger or disorder; alert; wary.

Be vigilant for signs of disease in your garden.

adjective
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Origin of vigilant

  • Middle English from Old French from Latin vigilāns vigilant- present participle of vigilāre to be watchful vigilante
    From American Heritage Dictionary of the English Language, 5th Edition
  • From French vigilant or its source, Latin vigilans, present participle of vigilare (“stay awake"), from vigil (“awake").
    From Wiktionary