Meanings
adjectiveimpermissible (comparative more impermissible, superlative most impermissible)
comparative more impermissible · superlative most impermissible
- Not permissible; not to be permitted or allowed.
Their use was “impermissible not because it is unwise or ineffective, but because [federal law]^([sic]) does not allow it”, the decision explained.
2025 May 29, Kalyeena Makortoff, “US federal court blocks Trump from imposing sweeping tariffs”, in The Guardian, →ISSN
Synonyms & antonyms
adjectivenot allowable
Similar
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Proto-Indo-European*né
- Proto-Indo-European*n̥-
- Proto-Italic*n̥-
- Latinin-
- Latinim-
- Englishim-
- Englishpermissible
- Englishimpermissible
From im- + permissible.
Full word history & related roots →Translations
Bulgarian недопустим
- недопустим (nedopustim)not to be permitted or allowed
Esperanto malpermesebla
- malpermeseblanot to be permitted or allowed
Cite this entry
APA
impermissible. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/impermissible
MLA
“impermissible.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/impermissible. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “impermissible,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/impermissible.
Source: impermissible on Wiktionary, CC BY-SA 4.0.