Unconscionability in English law

Unconscionability in English law is a field of contract law and the law of trusts, which precludes the enforcement of consent based obligations. "Inequality of bargaining power" is another term used to express essentially the same idea for the same area of law, which can in turn be further broken down into cases on duress, undue influence and exploitation of weakness. In these cases, where someone's consent to a bargain was only procured through duress, out of undue influence or under severe external pressure that another person exploited, courts have felt it was unconscionable (i.e., contrary to good conscience) to enforce agreements. Any transfers of goods or money may be claimed back in restitution on the basis of unjust enrichment subject to certain defences.