from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Difficult or impossible to impeach.
  • adjective Beyond reproach; blameless.
  • adjective Beyond doubt; unquestionable.

from The Century Dictionary.

  • Not impeachable; not capable of being impeached, accused, censured, or called in question; free from guilt, stain, or fault; blameless; irreproachable.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Not impeachable; not to be called in question; exempt from liability to accusation; free from stain, guilt, or fault; irreproachable; blameless

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective not able to be impeached or reproached
  • adjective blameless
  • adjective beyond doubt

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective free of guilt; not subject to blame
  • adjective beyond doubt or reproach
  • adjective completely acceptable; not open to exception or reproach


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word unimpeachable.


  • Quality: High (Jeff Smith's art and storytelling remain unimpeachable, and Hamaker's color has reached new levels of awesomeness)

    Comics Review: Bone 7: Ghost Circles 2008

  • Quality: High (Jeff Smith's art and storytelling remain unimpeachable, and Hamaker's color has reached new levels of awesomeness)

    Archive 2008-04-01 2008

  • For diabetes sufferers, the 'menu du jour' will include half a bottle of red vin ordinaire, following what Lansley will call "unimpeachable" research proving that such treatment contributes to their care.

    Andrew Lansley to add French lessons to NHS reform 2011

  • The _morale_ of the players could hardly be called unimpeachable, at least in some instances, but the violations of social rules were not so open as they had been in the old days.

    The Palmy Days of Nance Oldfield Edward Robins 1902

  • "It's given opponents of climate action leverage to attack what was widely considered to be unimpeachable, which is the science." - 2010

  • By the way, the word you want is 'unimpeachable', not 'impeachable'.

    Carry-Over Thread 2007

  • They approve of him in the way he's performed in office but they don't look at him as a kind of unimpeachable moral figure here who could kind of say, "OK, here's the way it goes."

    CNN Transcript - Special Event: Florida Passes Crucial Deadline; Gore Wins Legal Victory - November 17, 2000 2000

  • To be an "unimpeachable" wife was not to her thinking a sufficient meeting of her problem.

    The Tyranny of Weakness Charles Neville Buck 1904

  • When Sister Carol, along with the liberal advocacy group Network, backed the bill, her religious vocation became the focus of media attention: In a New York Times story, one source spoke of the sisters '"unimpeachable" reputation for serving the needs of the poor.

    The Daily Register 2010

  • There was "no error of principle" in the "unimpeachable" award to Mr Marano, ruled Lord Justice Thorpe, sitting with Lord Justice Wall and Lord Justice Rimer. news, business, sport, the Daily Telegraph newspaper, Sunday Telegraph 2010


Log in or sign up to get involved in the conversation. It's quick and easy.