Fast asleep
Fast asleep adjective - Sleeping deeply.
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Synonyms for Fast asleep
Out like a light and fast asleep are semantically related. In some cases you can use "Out like a light" instead an adjective phrase "Fast asleep".
Out like a light
Fast asleep and out like a light are semantically related. Sometimes you can use "Fast asleep" instead an adjective phrase "Out like a light".
Mutual synonyms
Related pairs
- sound and fast asleep
- sound and out like a light
- inert and fast asleep
- inert and out like a light
- dormant and fast asleep
- dormant and out like a light
- asleep and fast asleep
- asleep and out like a light
- out and fast asleep
- out and out like a light
- unconscious and fast asleep
- unconscious and out like a light
- comatose and fast asleep
- comatose and out like a light
Cite this Source
Out like a light and Fast asleep. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/fast_asleep/out_like_a_light
Fast asleep & Out like a light. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/fast_asleep/out_like_a_light>.
Out like a light or Fast asleep. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/fast_asleep/out_like_a_light.
