Flat
Flat adjective - Being neither more nor less than a certain amount, number, or extent.
Tired out and flat are semantically related. in without energy topic. In some cases you can use "Tired out" instead an adjective "Flat".
Tired out
Cite this Source
Tired out and Flat. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/flat/tired_out
Flat & Tired out. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/flat/tired_out>.
Tired out or Flat. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/flat/tired_out.
Google Ngram Viewer shows how "flat" and "tired out" have occurred on timeline