1. (Of a person) having no conscience; unscrupulous (an unconscionable used-car salesman).
2. (Of an act or transaction) showing no regard for conscience; affronting the sense of justice, decency, or reasonableness (the contract is void as unconscionable). Cf. CONSCIONABLE. [Cases: Contracts
1. C.J.S. Contracts §§ 2–3, 9, 12.]