The meaning of VIGILANT is alertly watchful especially to avoid danger. How to use vigilant in a sentence. Synonym Discussion of Vigilant.

VIGILANT definition: 1. always being careful to notice things, especially possible danger: 2. always being careful to…. Learn more.

Definition of vigilant adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define vigilant. vigilant synonyms, vigilant pronunciation, vigilant translation, English dictionary definition of vigilant. adj. On the alert, as for danger or error; watchful.

Use vigilant to describe someone who keeps awake and alert in order to avoid danger or problems. When taking the subway, be vigilant about your wallet — always know where it is, or someone might …

Apr 16, 2026 · Adjective vigilant (comparative more vigilant, superlative most vigilant) Watchful, especially for danger or disorder; alert; wary Be vigilant for signs of disease in your garden. (heraldry, …

alert: vigilant in his battle against crime; The guards were especially vigilant. wary: a vigilant sentry. sleeplessly watchful. Latin vigilant- (stem of vigilāns), present participle of vigilāre to be watchful. See …

Vigilant definition: On the alert, as for danger or error; watchful.

To be vigilant is to be watchful or alert for danger or some other kind of trouble. Vigilant can describe a person or an action. It is often used when talking about keeping something out or in—whether that …

Someone who is vigilant gives careful attention to a particular problem or situation and concentrates on noticing any danger or trouble that there might be. He warned the public to be vigilant and report …