Definition of vigilant
: alertly watchful especially to avoid danger
Examples of vigilant in a Sentence
Over the years, as tension between pitchers and hit batsmen heightened to the point that hitters began rushing the mound, umpires have had to become far more vigilant about keeping the game from degenerating into a dogfight. —Buzz Bissinger, Sports Illustrated, 21 Mar. 2005
At the Château de Wideville's magnificent seventeenth-century gates, guests have their names ticked off by vigilant staff and then snake through a lugubrious park à l'anglaise. —Hamish Bowles, Vogue, September 2002
And as a foreign tourist in North Korea, under the care of vigilant minders who wanted me to see only the best, I had enjoyed the finest fare available. —Christopher Hitchens, Vanity Fair, January 2001
A vigilant hand had, as usual, kept the fire alive and the lamp trimmed; and the room, with its rows and rows of books, its bronze and steel statuettes of “The Fencers” on the mantelpiece and its many photographs of famous pictures, looked singularly home-like and welcoming. —Edith Wharton, The Age of Innocence, 1920
When traveling through the city, tourists should be extra vigilant.
They were vigilant about protecting their children.
We remain vigilant against theft.
Recent Examples of vigilant from the Web
In a press conference Sunday morning, London Mayor Sadiq Khan praised the quick police response and asked Londoners to remain calm and vigilant.
Even those who recognize that powerful institutions in a democracy need vigilant oversight don't want to mess up what is (mostly) a good thing.
London police urge public to remain calm but be alert and vigilant.
Dr. Francisco Alvarez, of the Coral Springs Animal Hospital, said his patients’ owners are generally vigilant about flea protection measures.
Chipotle is warning customers to stay vigilant for unauthorized purchases on their account and report anything suspicious to banks and credit card companies.
The public is being urged to remain vigilant and and with tensions heightened, police are not taking any chances with any reports of suspicious activity.
The government is urging U.S. citizens in Manchester to heed directions from local authorities and be vigilant about their security.
But Cardillo doesn’t think this will make the ever-vigilant Federal Reserve board give in on interest rates.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vigilant'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of vigilant
Middle English (Scots), from Latin vigilant-, vigilans, from present participle of vigilare to keep watch, stay awake, from vigil awake
First Known Use: 15th century
Synonym Discussion of vigilant
VIGILANT Defined for English Language Learners
Definition of vigilant for English Language Learners
: carefully noticing problems or signs of danger
VIGILANT Defined for Kids
Definition of vigilant for Students
: alert especially to avoid danger … he was constantly vigilant, looking for the next nearest hiding place should the sound of engines come. — Lois Lowry, The Giver
Seen and Heard
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