infallible

1. ADJ If a person or thing is infallible, they are never wrong. 从不出错的

Although he was experienced, he was not infallible. 尽管他经验丰富，却并非不会出错。

2. infallibilityN-UNCOUNT

...exaggerated views of the infallibility of science. ...关于科学永无过失的言过其实的观点。