a. 无信的, 不忠实的
s. having the character of, or characteristic of, a traitor
1.I am not that kind of faithless, cowardly vermin.
我才不是那种毫无信仰又怯懦的害虫
2.And if you find that you are still faithless, don't come back.
假如你依旧没产生信仰... 就别回来
3.We pve in a mighty age of science and faithlessness.
我们生活在一个科学和无神论的强大年代
4.When we first met, I considered you nothing but a faithless privateer.
我们第一次见面的时候 我以为你是个没有信用的骗子