ISEE/SSAT Vocabulary BuilderWordsVvigilant
ISEE/SSATeasy
vigilant
Meaning: keeping careful watch for danger
vigilant in a sentence
How vigilant is used in real sentences:
Vigilant lifeguards spotted the swimmer in trouble.
The lifeguard remained vigilant all afternoon.
“Vigilant guards waited near tunnel entrances and rushed at any movement that signaled danger.”
— from the passage Gardens Beneath the Forest
Synonyms for vigilant
Other words for vigilant — alert, watchful and observant — carry the same meaning.
- alert
- watchful
- observant
Antonyms of vigilant
Words that mean the opposite of vigilant:
- inattentive
- careless
Where it comes from
From Latin vigilare 'to keep awake'
Memory hook
VIGILANT — keeping a VIGIL.