Thesaurus
vigilant
Synonyms and Antonyms of vigilant
- The night watchman, who was usually vigilant, apparently dozed off and didn't notice the vandals sneaking in.
on guard, on one's toes, on the alert, on the ball, on tiptoe
Synonym Discussion of vigilant
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- the watchful eye of the department supervisor
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- eternally vigilant in the safeguarding of democracy
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- wide-awake companies latched onto the new technology
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- alert traders anticipated the stock market's slide
Learn More about vigilant
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Dictionary: Definition of vigilant Spanish Central: Translation of vigilant Nglish: Translation of vigilant for Spanish speakers Britannica English: Translation of vigilant for Arabic speakers
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