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Definition of sleeplessness
sleeplessness
/ˈsliːp.ləs.nəs/
sleep · less · ness
Adverb:sleeplessly
•Adjective:sleepless
sleeplessness Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
3
sleeplessness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The state or condition of being unable to sleep, especially as a recurring or prolonged problem.
Example
"Stress before the final examinations caused bouts of sleeplessness for many students."
Synonyms
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Cite this Entry
Wordmom. (2026). Definition of Sleeplessness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sleeplessness