unchallenged
adj. 不成问题的；未引起争论的；[法] 不回避的
例句
His integrity was unchallenged.
他的诚实正直未受到过质疑。
《柯林斯英汉双解大词典》
These views have not gone unchallenged.
这些观点并非没有受到过质疑。
I walked into the building unchallenged.
我畅行无阻地走进大楼。
《牛津词典》
