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wakefulness

NOUN

watchfulness

Synonyms

STRONG

alertness attention vigilance

Antonyms

STRONG

negligence

WEAK

drowsiness

NOUN

sleeplessness

Synonyms

STRONG

insomnia restlessness

Antonyms

WEAK

drowsiness

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