Inexcusable and Unendurable

Inexcusable

Inexcusable adjective - Too bad to be excused or justified.
Usage example: spitting at a teacher is inexcusable behavior and will be severely punished

Unendurable and inexcusable are semantically related. In some cases you can use "Unendurable" instead an adjective "Inexcusable".

Unendurable

Unendurable adjective - More than can be put up with.

Inexcusable and unendurable are semantically related. Sometimes you can use "Inexcusable" instead an adjective "Unendurable".
Cite this Source
Unendurable and Inexcusable. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/inexcusable/unendurable
Inexcusable & Unendurable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/inexcusable/unendurable>.
Unendurable or Inexcusable. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/inexcusable/unendurable.
Google Ngram Viewer shows how "inexcusable" and "unendurable" have occurred on timeline