unconscionable

adj

1. Not conscionable; unscrupulous and lacking principles or conscience.

   “When Roger assured him that prospects "looked very good" for a retrial, even a reversal of the verdict, since Roger had discovered "unconscionable errors" in the trial, Jackson grunted in bemusement and smiled with half his mouth.”

   “In a statement on Friday announcing her withdrawal, [Arundhati] Roy, who had been planning to attend a screening of her recently restored 1989 film In Which Annie Gives it Those Ones, called the comments “unconscionable” and feared they had reached “millions of people across the world”.”

2. Excessive, imprudent or unreasonable.

   “The effective rate of interest was unconscionable, but not legally usurious.”

   “[...] and the agrieved person shall doe more manly, to be extraordinary and singular in claiming the due right whereof he is frustrated, then to piece up his lost contentment by visiting the Stews, or stepping to his neighbours bed, which is the common shift in this mis-fortune, or els by suffering his usefull life to wast away and be lost under a secret affliction of an unconscionable size to humane strength.”

   “He amazed the pretty hostess by refusing breakfast; however, flinging down double the amount of her already unconscionable bill, consoled her for his want of appetite.”