Find Antonyms
wakefulness Antonyms
Opposite of wakefulness
Because the opposite of wakefulness shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• noun (Context 1)
The state or condition of being awake, conscious, and alert rather than asleep.
Usage Example
"Researchers monitored the brain waves of the participants during periods of both deep sleep and quiet sleep."
Strongest
sleep
slumber
sleepiness
drowsiness
Strong
somnolence
lethargy
torpor
• noun (Context 2)
Inability or failure to sleep at night; sleeplessness.
Usage Example
"Drinking strong coffee late in the evening often leads to hours of restless sleepiness."
Strongest
sleepiness
drowsiness
Strong
somnolence
Similar words to wakefulness
Words similar to wakefulness shift depending on context. Common synonyms include:
sleeplessness
alertness
insomnia
consciousness
watchfulness
vigilance
restlessness
Cite this Entry
Wordmom. (2026). Antonyms for Wakefulness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/wakefulness