This is a questionable attitude if taken too far.

如果说的深远一点的话，这是一个值得怀疑的态度。

youdao

Is your character, behavior, or attitude questionable?

你的性格、行为或态度存在问题么？

youdao

But the attitude they have towards their own pollution is very questionable.

可是他们面对自己污染的态度太让人质疑了。

youdao

However, his questionable attitude during his early career led to him being nicknamed "Le Sulk" at Arsenal and being banned for 45 days at Real after refusing to train.

CNN: Chelsea's Anelka to join Chinese club