Somnambulist

/[sɒmˈnæmbjʊlɪst]/ noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A person who walks about in their sleep; a sleepwalker.

    "The clergyman floundered a moment, as is usual with an absent man who is recovering the train of his ideas, or a somnambulist when he is suddenly awakened."

  2. 2
    someone who walks about in their sleep wordnet

Synonyms

All synonyms
noctambulistsleepersleepwalkersleepwalkersleepyhead

Example

More examples

"The clergyman floundered a moment, as is usual with an absent man who is recovering the train of his ideas, or a somnambulist when he is suddenly awakened."

Etymology

Borrowed from French somnambuliste, from Medieval Latin somnambulus (“sleepwalker”). By surface analysis, somn- + -ambulist.

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