Allowable and Impermissible

Allowable

Allowable adjective - That may be permitted.
Usage example: international travel without a passport isn't allowable

Impermissible is an antonym for allowable in permissible topic.

Impermissible

Impermissible adjective - That may not be permitted.
Usage example: trial juries must be able to discern the difference between a permissible inference and impermissible speculation

Allowable is an antonym for impermissible in permissible topic.
Cite this Source
Impermissible and Allowable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/allowable/impermissible
Allowable & Impermissible. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/allowable/impermissible>.
Impermissible or Allowable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/allowable/impermissible.
Google Ngram Viewer shows how "allowable" and "impermissible" have occurred on timeline