Sleepless and Up

Related words

Sleepless adjective - Not sleeping or able to sleep.

Usage example: lay sleepless with worry

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Up and sleepless are semantically related. In some cases you can use "Up" instead an adjective "Sleepless".

Nearby Words: sleep, sleepy, sleeping, sleeplessness

Up adjective - Being at a higher level than average.

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Sleepless and up are semantically related. Sometimes you can use "Sleepless" instead an adjective "Up".

Cite this Source

Up and Sleepless. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/sleepless/up

Sleepless & Up. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/sleepless/up>.

Up or Sleepless. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/sleepless/up.

Google Ngram Viewer shows how "sleepless" and "up" have occurred on timeline