disaffirm Syllabification: (dis·af·firm)Pronunciation: /ˌdisəˈfərm/Definition of disaffirm verb [with object] Law repudiate; declare void:to disaffirm a contract is to say it never existedDerivatives disaffirmationPronunciation: /disˌafərˈmāSHən/ noun disaffirm in other Oxford dictionaries Definition of disaffirm in the British & World English dictionary