Awake
Awake adjective - Not sleeping or able to sleep.
Without sleep and awake are semantically related. In some cases you can use "Without sleep" instead an adjective "Awake".
Without sleep
Awake and without sleep are semantically related. You can use "Awake" instead an adjective phrase "Without sleep".
Mutual synonyms
Both terms in one sentence
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It Makes Sense in Context: Batman had already been without sleep for three days before having to stay awake long enough to defeat Dr. Destiny.
Source: Post-Victory Collapse - Unfortunately, he'd just had to spend an unusually long time without sleep, so he kept dozing off just sitting there — and every time she tried to rouse him, he'd come awake frantically lashing out with karate and destroy another piece of furniture....
Source: Wake-Up Fighting -
It was commonly used amongst the rangers and Jägers, who managed to stay awake without sleep for a week or so with it.
Cite this Source
Without sleep and Awake. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/awake/without_sleep
Awake & Without sleep. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/awake/without_sleep>.
Without sleep or Awake. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/awake/without_sleep.
Google Ngram Viewer shows how "awake" and "without sleep" have occurred on timeline