What is the meaning of sound asleep?

adjective

  • Sleeping deeply.
    • usage: "lying fast asleep on the sofa"; "it would be cruel to wake him; he's sound asleep"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). sound asleep. Retrieved September 21, 2026, from http://smartdefine.org/sound_asleep/definitions/1184002
ChicagoWordNet. 2010. "sound asleep" http://smartdefine.org/sound_asleep/definitions/1184002 (accessed September 21, 2026).
HarvardWordNet 2010, sound asleep, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/sound_asleep/definitions/1184002>.
MLAWordNet. "sound asleep" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/sound_asleep/definitions/1184002>