/dɪsəˈfɜrm/ – verb
Definition: từ chối hoặc bác bỏ một hợp đồng hoặc giao kèo.
A more thorough explanation: to reject; to take back an affirmation (=a statement that something is true; confirmation; ratification)
Example: Parents have the right to disaffirm certain contracts agreed to by minors.