unconscionable

adjective | \ ˌən-ˈkän-chə-nə-bəl \ | un·con·scio·na·ble

1. : unreasonably unfair to one party, marked by oppression, or otherwise unacceptably offensive to public policy an unconscionable clause finds the contract…to have been unconscionable at the time it was made —Uniform Commercial Code — compare conscionable