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impermissible

[ im-per-mis-uh-buhl ]
/ ˌɪm pərˈmɪs ə bəl /
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adjective
not permissible or allowable; unallowable.
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Origin of impermissible

First recorded in 1855–60; im-2 + permissible

OTHER WORDS FROM impermissible

im·per·mis·si·bil·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use impermissible in a sentence

British Dictionary definitions for impermissible

impermissible
/ (ˌɪmpəˈmɪsɪbəl) /

adjective
not permissible; not allowed

Derived forms of impermissible

impermissibility, nounimpermissibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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