Sleepless and Vigilant

Related words

Sleepless adjective - Not sleeping or able to sleep.

Show all Definitions

Vigilant and sleepless are semantically related in alert topic. In some cases you can use "Vigilant" instead an adjective "Sleepless".

Nearby Words: sleep, sleepy, sleeping, sleeplessness

Vigilant adjective - Paying close attention usually for the purpose of anticipating approaching danger or opportunity.

Usage example: the night watchman, who was usually vigilant, apparently dozed off and didn't notice the vandals sneaking in

Show all Definitions

Sleepless and vigilant are semantically related in careful topic. You can use "Sleepless" instead an adjective "Vigilant".

Nearby Words: vigilantly, vigilance, vigil, vigilante

Cite this Source

Vigilant and Sleepless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/sleepless/vigilant

Sleepless & Vigilant. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/sleepless/vigilant>.

Vigilant or Sleepless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/sleepless/vigilant.

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