English edit

Etymology edit

From Middle English slepeles, from Old English slǣplēas; equivalent to sleep +‎ -less.

Pronunciation edit

  • IPA(key): /ˈsliːpləs/
  • Hyphenation: sleep‧less
  • (file)

Adjective edit

sleepless (comparative more sleepless, superlative most sleepless)

  1. Characterized by an absence of sleep.
    I spent a sleepless night worrying about the exams.

Derived terms edit

Translations edit