Not conscionable; exceeding the limits of any reasonable claim or expectation; not conforming to reason; unreasonable; inordinate; extravagant; as, an unconscionable person or demand; unconscionable size. "Which use of reason, most reasonless and unconscionable, is the utmost that any tyrant ever pretended." "His giantship is gone somewhat crestfallen, Stalking with less unconscionable strides."