adj
vigilant
VIHD-zhih-luhnt
adj
1
Watchful and alert, especially for danger, trouble, or wrongdoing.
"Stay vigilant when walking alone at night."
"The lifeguards remained vigilant throughout the busy afternoon."
How to Use Vigilant
Learner’s notesIn plain EnglishOn guard and paying close attention, ready to react if something goes wrong.
Easily confused with
Common pairings
remain vigilant
stay vigilant
vigilant about
Word Forms
more vigilant comparative, most vigilant superlative
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Stay _____ when walking alone at night.
Etymology
From Latin vigilans ("staying awake"), the present participle of vigilare, from vigil ("awake").