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vigilant

[ vij-uh-luhnt ]
/ ˈvɪdʒ ə lənt /
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See synonyms for: vigilant / vigilantly on Thesaurus.com

adjective

keenly watchful to detect danger; wary: a vigilant sentry.
ever awake and alert; sleeplessly watchful.

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Origin of vigilant

1470–80; <Latin vigilant- (stem of vigilāns), present participle of vigilāre to be watchful. See vigil, -ant
2. See alert.
vigilant , vigilante
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for vigilant

vigilant
/ (ˈvɪdʒɪlənt) /

adjective

keenly alert to or heedful of trouble or danger, as while others are sleeping or unsuspicious
vigilantly, adverbvigilantness, noun
C15: from Latin vigilāns keeping awake, from vigilāre to be watchful; see vigil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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