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insomnia

nounattested in dialogue

  • //ɪnˈsɒmniə//

A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.

noun

  1. 1

    A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.

    My mother suffers from insomnia.

    It’s also possible for insomnia to be caused by restless leg syndrome.

  2. 2

    informalTemporary inability to sleep.

Etymology

Borrowed from Latin īnsomnia, from Latin in- (“without”) + somnus (“sleep”, noun) + -ia, equivalent to in- + somn- + -ia.

Forms

plural
insomnias
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).