She decided to divorce her increasingly faithless and unreliable husband.她决定与越来越花心、越来越靠不住的丈夫离婚。It was believed in Gondor that the faithless enemy had trapped the king.刚铎王国的人们认为是背信弃义的敌人抓走了他们的国王。The disc has a heavy surface and the tone is faithless.那唱片表面粗厚，音质失真。He is a faithless friend.他是个不可靠的朋友。