famous的反义词是infamous,前缀是in
例句
1、
The ship crashed into the infamous Sker Point rocks and broke into three pieces.
这艘船撞上了恶名远扬的斯戈尔尖岬暗礁群,断为三截。
2、
Bronka is somewhat infamous for his screeching electric guitar work.
布朗卡因为弹出刺耳的电吉他声而有些让人讨厌。