undefended cause, in relation to matrimonial dispute A case, in which the respondent has not given notice of the intention to defend within the time limit, or, in any other case, a case in which no answer has been filed or any answer filed has been struck out or a case which is proceeding only on the respondents answer and in which no reply or answer to the respondents answer and in which no reply or answer to the respondents answer has been filed or any such reply or answer has been struck out.