反义词：
失信、背信、失约、违约
| 失信 | 失信 shīxìn [break one's promise] 违背协议或诺言,丧失信用 失信于人 |
| 背信 | 背信 bèixìn [perfidy;treachery;act in bad faith;breach of faith] 背弃信用 |
| 失约 | 失约 shīyuē [fail to keep an appointment]不去赴约 不要失约 |
| 违约 | 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 |
近义词：
履约
| 履约 | 履约 lǚyuē (1) [honor an agreement;keep a promise;keep an appointment]∶履行约定的事;践约 (2) [practise thrift]∶实行节约 居俭履约 (3) [keep one's stipulations of an agreement]∶遵守规约 清明履约,率礼无违 |
守约词典解释 (详细解释)