Drowsy
Knackered
Knackered adjective - Depleted in strength, energy, or freshness.
Usage example: I'm absolutely knackered, so no pub-crawling for me tonight
Mutual synonyms
Cite this Source
Knackered and Drowsy. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/drowsy/knackered
Drowsy & Knackered. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/drowsy/knackered>.
Knackered or Drowsy. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/drowsy/knackered.
Google Ngram Viewer shows how "drowsy" and "knackered" have occurred on timeline