Insupportable and Permissible

Insupportable

Insupportable adjective - Too bad to be excused or justified.
Usage example: the organization's racist views have been denounced as morally insupportable

Permissible is an antonym for insupportable.

Permissible

Permissible adjective - That may be permitted.

Insupportable is an antonym for permissible.

Cite this Source
Permissible and Insupportable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/insupportable/permissible
Insupportable & Permissible. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/insupportable/permissible>.
Permissible or Insupportable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/insupportable/permissible.
Google Ngram Viewer shows how "insupportable" and "permissible" have occurred on timeline