as in alert
paying close attention usually for the purpose of anticipating approaching danger or opportunity
the night watchman, who was usually vigilant, apparently dozed off and didn't notice the vandals sneaking in
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Example Sentences
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Recent Examples of vigilant
Police advised residents to be vigilant and said that vehicles should always be locked, even in the driveway.
—
Rick Hurd,
Mercury News,
2 July 2026
With an active legal fight over the quiet period's scope still playing out in the courts, eligible voters should be vigilant about checking their registration status before their states' deadlines, says Edobor.
—
Hansi Lo Wang,
NPR,
1 July 2026
Still, analysts are vigilant about potential risks, especially on AI bubble concerns.
—
John Towfighi,
CNN Money,
1 July 2026
Parents urged to stay vigilant As the heat index rises into the triple digits, doctors are encouraging parents to stay vigilant.
—
Ashley Grams,
CBS News,
29 June 2026
See All Example Sentences for vigilant
Rick Hurd,
Mercury News,
2 July 2026
With an active legal fight over the quiet period's scope still playing out in the courts, eligible voters should be vigilant about checking their registration status before their states' deadlines, says Edobor.
—
Hansi Lo Wang,
NPR,
1 July 2026
Still, analysts are vigilant about potential risks, especially on AI bubble concerns.
—
John Towfighi,
CNN Money,
1 July 2026
Parents urged to stay vigilant As the heat index rises into the triple digits, doctors are encouraging parents to stay vigilant.
—
Ashley Grams,
CBS News,
29 June 2026
See All Example Sentences for vigilant
Recent Examples of Synonyms for vigilant
Adjective
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And many key aspects of society rely on the data centers that have been built over the decades, serving websites, handling online purchases and delivering emails, text messages and alert notices.
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During an air quality alert day, state environmental authorities recommend to avoid strenuous outdoor activities as much as possible, especially people who have existing health conditions such as heart disease or asthma.
Adjective
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For example, don’t lay awake at night thinking about tomorrow's tasks.
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Maybe staying awake to novel experiences is the key to vitality.
Adjective
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Wildlife enthusiasts find a different rhythm through AmaWaterways’ Africa Safaris & Wildlife Cruises, one that trades itinerary sprinting for long, watchful hours on the water.
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Cruz is alluring and watchful, while Norton turns out to be the film’s secret weapon.
Adjective
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Determination and careful calculations — hold on, carry the 2 — are a must.
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Graduate students face lower federal limits and the loss of Grad PLUS, requiring careful financial planning.
Adjective
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Buckingham Palace has, however, been aware of that judgment since last Thursday.
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City officials were made aware of the potential dangers the fireworks were posing for the departing and arriving flights.
Cite this Entry
“Vigilant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vigilant. Accessed 7 Jul. 2026.
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