爽约没有履行约会；失约。例郭伋还州尚不欺于童子；文侯校猎宁爽约于虞人？——李商隐《为张周封上杨相公启》一诺千金，岂容爽约？英fail to keep an appointment; break an appointment;[查看详情]

缺席未出席；该到未到。例被告缺席依法判决。英miss; absent;[查看详情]

误期耽误规定的期限。英delay;[查看详情]

负约失信背约。英break a promise; go back on one's words;[查看详情]

食言违背诺言；失信。例尔无不信朕不食言。——《书汤誓》食言而肥。决不食言。英break one’s promise;[查看详情]

背信背弃信用。英perfidy; treachery; act in bad faith; breach of faith;[查看详情]

失信违背协议或诺言，丧失信用。例失信于人。英break one's promise;[查看详情]

背约违背原来的约定。例背约毁誓。英break an agreement; go back on one's word;[查看详情]