vigilant
adjective/ˈvɪdʒɪlənt/
/ˈvɪdʒɪlənt/
(formal)- very careful to notice any signs of danger or trouble synonym alert, watchful
- A pilot must remain vigilant at all times.
- The thief was spotted by vigilant neighbours.
- The organization is ever vigilant for threats to the habitats of birds.
- You need to be vigilant against garden pests.
Oxford Collocations Dictionaryverbs- be
- keep
- remain
- …
- extremely
- very
- especially
- …
- about
- against
Word Originlate 15th cent.: from Latin vigilant- ‘keeping awake’, from the verb vigilare, from vigil ‘awake’.Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
Check pronunciation:
vigilant