unhelpful

The customer service agent was unhelpful, simply reading from a script instead of listening to my specific problem.

(Chinese) 客服人员一点忙也没帮上，只是照本宣科，而不是倾听我的具体问题。

Pointing out someone's mistakes without suggesting a solution is often unhelpful and demoralizing.

(Chinese) 指出别人的错误而不提出解决方案往往是无益的，而且会让人丧气。