vigilant

From Wiktionary

Pronunciation[change]

Adjective[change]

Positive
vigilant

Comparative
more vigilant

Superlative
most vigilant

  1. If a person is vigilant, they pay careful attention to their surroundings, especially to notice danger.
    For your safety, you must remain alert and vigilant at all times on the job.
    The police found her after a call from a vigilant citizen.

Related words[change]