won't take no for an answer

won't take no for an answer

Will not stop with what one has planned or desires, regardless of others' lack of agreement. Once my brother gets his mind made up, he won't take no for an answer, so don't bother trying to reason with him. It's nice of you to refuse, sweetheart, but this car is a gift from your grandmother and me—we won't take no for an answer!
See also: answer, take