Word.ws English Dictionary

unsleepy

unsleepy adjective: not sleepy; wakeful.

Adjective

unsleepy (comparative more unsleepy, superlative most unsleepy)

  1. Not sleepy; wakeful.
    • My seemingly endless medical school days of gleelessly skipping lectures and spending far too many hours on crosswords, of obsessive toast eating and long hostile runs after which I’d get into bed unsleepy at 8 p.m. simply hoping to bring the day to a close a little bit earlier — that would all be...2007 July 28, Rivka Galchen, “My Mother, Myself”, in New York Times

Forms of unsleepy

comparativemore unsleepy
superlativemost unsleepy

Origin of unsleepy

From un- + sleepy, perhaps continuing Middle English *unslepy, from Old English unslǣpiġ (“sleepless”). Compare Dutch onslaperig (“unsleepy”), German unschläfrig (“unsleepy”).

Words formed from unsleepy

Questions about unsleepy

What does unsleepy mean?
Unsleepy means not sleepy; wakeful.
What part of speech is unsleepy?
Unsleepy is an adjective.

Words near unsleepy in the dictionary

  1. unsleepily
  2. unsleepiness
  3. unsleeping
  4. unsleepingly
  5. unsleeps
  6. unsleepy
  7. unsleeve
  8. unsleeved
  9. unsleeves
  10. unsleeving
  11. unslender

Source and license

Adapted from Wiktionary: unsleepy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “unsleepy.” Word.ws, https://word.ws/unsleepy. Based on Wiktionary, CC BY-SA 4.0.