Definition of unconscionable adjective from the Oxford Advanced American Dictionary

     

    unconscionable

     adjective
    adjective
    NAmE//ʌnˈkɑnʃənəbl//
     
    [usually before noun](formal)
     
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  1. 1(of an action, etc.) so bad, immoral, etc. that it should make you feel ashamed It would be unconscionable for her to keep the money.
  2. 2(often humorous) too great, large, long, etc. synonym excessive You take an unconscionable amount of time getting dressed!
See the Oxford Advanced Learner's Dictionary entry: unconscionable