Quasi-Estoppel Quasi-Estoppel Quasi-Estoppel Cuasiestoppel Cuasiestoppel Quasi-estoppel קוואזי-אסטופל क्वासी-एस्टोपल 準拘束効力 Quase-estoppel 准停止 Quasi-Estoppel is a legal principle that prevents a party from denying or asserting a position that is contrary to a previous position they have taken, even if there is no formal legal agreement or contract in place.