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[uhn-kon-shuh-nuh-buh l] /ʌnˈkɒn ʃə nə bəl/
not guided by conscience; unscrupulous.
not in accordance with what is just or reasonable:
unconscionable behavior.
excessive; extortionate:
an unconscionable profit.
Origin of unconscionable
First recorded in 1555-65; un-1 + conscionable
Related forms
unconscionability, noun
unconscionably, adverb
3. extreme, immoderate, unwarranted, inordinate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unconscionably
Historical Examples
  • This is a very amusing (but scarce and unconscionably dear) book.

    Bibliomania; or Book-Madness Thomas Frognall Dibdin
  • In short, truth is only too often most unconscionably sacrificed to effect.

  • The storm had held off unconscionably long; the air within the lodge was stifling, and without the garden waited, breathless.

  • He was a passionate, impatient worker, too often unconscionably superficial.

    Venice and its Story Thomas Okey
  • They were unconscionably amused when he suddenly reached out and took his wife's hand in his big fingers.

    The Man From Brodney's George Barr McCutcheon
  • "I fear I have paid you an unconscionably long visit," I said.

    A Cabinet Secret Guy Boothby
  • At any rate, he did not hesitate to exploiter them most unconscionably.

  • The afternoon promised to be unconscionably long in reaching four o'clock, and Forbes set out for another saunter down the Avenue.

    What Will People Say? Rupert Hughes
  • In the back, down to her girdle and in the front down——unconscionably low.

    The Awakening of Spring Frank Wedekind
  • "We've taken up Mr. Gerrish's time most unconscionably," and now Mr. Gerrish did not urge her to remain.

    Annie Kilburn William Dean Howells
British Dictionary definitions for unconscionably


unscrupulous or unprincipled: an unconscionable liar
immoderate or excessive: unconscionable demands
Derived Forms
unconscionableness, noun
unconscionably, adverb
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 unconscionably



1560s, "showing no regard for conscience," from un- (1) + now rare conscionable "conscientious." Related: Unconscionably.

Online Etymology Dictionary, © 2010 Douglas Harper
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