Insomnia

//ɪnˈsɒmniə// noun, slang

noun, slang ·Common ·High school level

Definitions

Noun
  1. 1
    A sleeping disorder that is known for its symptoms of unrest and the inability to sleep. countable, uncountable

    "My mother suffers from insomnia."

  2. 2
    an inability to sleep; chronic sleeplessness wordnet
  3. 3
    Temporary inability to sleep. countable, informal, uncountable

Synonyms

All synonyms
sleeplessnessabscessaguealertnessall-night vigilanemia

Example

More examples

"She was relieved from insomnia."

Etymology

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

More for "insomnia"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.