vigilant

[vij-uh-luhnt] / ˈvɪdʒ ə lənt /

ADJECTIVE

careful, watchful

Synonyms

STRONGEST

anxious attentive aware cautious circumspect keen observant wary

WEAK

acute agog alert guarded looking for looking to on alert on guard on the ball on the job on the lookout on the qui vive on toes open-eyed sharp sleepless unsleeping waiting on wakeful wide-awake with eyes peeled with weather eye open

Antonyms

STRONGEST

careless heedless ignorant inattentive incautious indifferent indiscreet rash thoughtless unaware uncareful unobservant

WEAK

impulsive negligent

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Several African countries including Kenya, Malawi, Lesotho and Zimbabwe have advised their citizens to remain vigilant.

From BBC • Jun. 2, 2026

“We just need to remain absolutely vigilant, cautious and diligent,” said Macy Steers, co-head of financial lines at CNA Insurance.

From The Wall Street Journal • Jun. 2, 2026

Economy Minister Roland Lescure said after the figures that the government "remained vigilant, but without giving in to fear-mongering".

From Barron's • May 29, 2026

Hustled from the scene by a neighboring florist, she meets the vigilant but eccentric Neighborhood Watch group at the home of reclusive former detective Augusta Dupin.

From Los Angeles Times • May 12, 2026

Beside each of them stood a man—some tall and slender, some burly, some average, all of them surrounded by at least three vigilant guards.

From "Throne of Glass" by Sarah J. Maas

Vocabulary lists containing vigilant

100 Words Every Middle Schooler Should Know

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

The Giver

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

List 3

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!