1. Exceeding the limits of propriety or good manners; improperly forward or bold: scolded the impertinent child for talking rudely.
2. Not pertinent: See Synonyms at irrelevant.
[Middle English, irrelevant, from Old French, from Late Latin impertinēns, impertinent- : Latin in-, not; see IN-1 + Latin pertinēns, pertinent; see PERTINENT.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.