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Definition of "unimpeachable" []

  • Difficult or impossible to impeach: an unimpeachable witness. (adjective)
  • Beyond reproach; blameless: unimpeachable behavior. (adjective)
  • Beyond doubt; unquestionable: "works of such unimpeachable greatness” ( Musical Heritage Review). (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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