Antonyms for unvigilant

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

late 15c., from Latin vigilantia "wakefulness," from vigilia (see vigil). Related: Vigilantly.

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.