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[im-pek-uh-buh l] /ɪmˈpɛk ə bəl/
faultless; flawless; irreproachable:
impeccable manners.
not liable to sin; incapable of sin.
Origin of impeccable
First recorded in 1525-35, impeccable is from the Latin word impeccābilis faultless, sinless. See im-2, peccable
Related forms
impeccability, noun
impeccably, adverb
1. unassailable, unexceptionable. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for impeccability
Historical Examples
  • It shows me how rightly I judged the moral elevation of your soul, your impeccability, your spirit of fire and heart of gold.

    The Eternal City Hall Caine
  • I assured him of the impeccability of his attire, and commented on its splendour.

    Simon the Jester William J. Locke
  • The story of Hrt and Mrt is of some interest from its connection with the question of the impeccability of the angels.

    The Faith of Islam Edward Sell
  • I wasn't accepting Bonteck's belief in Goff's impeccability entirely at its face value.

    Pirates' Hope Francis Lynde
  • She admired rather enviously the gown of shimmering dark blue, the impeccability of adolescence.

  • He consoled himself with reflections on her impeccability, her wondrous intuition, her Far-away Princess-like delicacy.

    The Mountebank William J. Locke
  • Henry, on his side, was determined to allow nothing to stand in his way, whilst keeping up his appearance of impeccability.

  • God could not communicate to him impeccability, which is an inalienable attribute of his divine perfection.

    Good Sense Paul Henri Thiry, Baron D'Holbach
  • His white suits lost their impeccability; often he left the upper button open.

    Caybigan James Hopper
  • She thought Miss Rexhill a most imposing young woman and she believed in the impeccability of the well-to-do.

    Hidden Gold Wilder Anthony
British Dictionary definitions for impeccability


without flaw or error; faultless: an impeccable record
(rare) incapable of sinning
Derived Forms
impeccability, noun
impeccably, adverb
Word Origin
C16: from Late Latin impeccābilis sinless, from Latin im- (not) + peccāre to sin
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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Word Origin and History for impeccability



1530s, "not capable of sin," from Middle French impeccable (15c.) or directly from Late Latin impeccabilis "not liable to sin," from assimilated form of in- "not, opposite of" (see in- (1)) + pecare "to sin," of unknown origin. Meaning "faultless" is from 1610s. Related: Impeccably.

Online Etymology Dictionary, © 2010 Douglas Harper
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