Impeccable Definition

Having no flaws; perfect.
American Heritage
Not liable to sin, incapable of wrongdoing.
Webster's New World
Without defect or error; faultless; flawless.
Webster's New World

Origin of Impeccable

  • From Middle French impeccable, from Latin impeccabilis (“not liable to sin”), from im- (“not”) + peccare (“to err, to sin”).

    From Wiktionary

  • Latin impeccābilis in- not in–1 peccāre to sin ped- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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