近义词：背约、违约
背约 bèiyuē[break an agreement;go back on one's word] 违背原来的约定背约毁誓
违约 wéiyuē[default;break a contract;violate a treaty;break off an engagement;break one's promise] 不遵守条约、契约的规定违约行为要受处罚
反义词：失信、失约、爽约、违约、守约
失信 shīxìn[break one's promise] 违背协议或诺言,丧失信用失信于人
失约 shīyuē[fail to keep an appointment]不去赴约不要失约
爽约 shuǎngyuē[fail to keep an appointment; break an appointment] 没有履行约会;失约郭?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?
违约 wéiyuē[default;break a contract;violate a treaty;break off an engagement;break one's promise] 不遵守条约、契约的规定违约行为要受处罚
守约 shǒuyuē(1) [keep an appointment]∶遵守约定守约而来(2) [keep a thrifty and simple way]∶保持俭朴孤贫守约
背信词典解释
词语拼音：bèi xìn
词语解释：
背信 bèixìn
[perfidy;treachery;act in bad faith;breach of faith] 背弃信用
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