At rest and Unalert

At rest

At rest adjective - In a state of repose or especially sleep.

Unalert and at rest are semantically related. In some cases you can use "Unalert" instead an adjective phrase "At rest".

Unalert

Unalert adjective - Not alert to what is potentially dangerous.

At rest and unalert are semantically related. Sometimes you can use "At rest" instead an adjective "Unalert".
Cite this Source
Unalert and At rest. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/at_rest/unalert
At rest & Unalert. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/at_rest/unalert>.
Unalert or At rest. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/at_rest/unalert.
Google Ngram Viewer shows how "at rest" and "unalert" have occurred on timeline