faithless

1. ADJ If you say that someone is faithless, you mean that they are disloyal or dishonest. 不忠實(shí)的; 不誠(chéng)實(shí)的

She decided to divorce her increasingly faithless and unreliable husband. 她決定要跟她那越來越不忠實(shí)也靠不住的丈夫離婚。