unconscionable unconscionable /ənˈkɑːnʃənəbəl/

adjective

1. Greatly exceeding bounds of reason or moderation  ( exorbitant , extortionate , outrageous , steep , unconscionable , usurious , exhorbitant [Non-standard] , eye-watering [Informal] )
   greatly exceeding bounds of reason or moderation
    Exorbitant rent
   exorbitant rent
    Extortionate prices
   extortionate prices
    Spends an outrageous amount on entertainment
   spends an outrageous amount on entertainment
    Usurious interest rate
   usurious interest rate
    Unconscionable spending
   unconscionable spending
   
2. Lacking a conscience  ( conscienceless , unconscionable )
   lacking a conscience
    A conscienceless villain
   a conscienceless villain
    Brash, unprincipled, and conscienceless
   brash, unprincipled, and conscienceless
    An unconscionable liar
   an unconscionable liar