unhelpful
adjective uk/ʌnˈhelp.fəl/ us/ʌnˈhelp.fəl/
C1 无益的，无用的
not improving a difficult situation
The instructions were badly written and unhelpful. 用法说明写得很糟，一点儿用也没有。
I don't need any more of your unhelpful advice! 我再也不需要你那些没用的建议了！
B2 不愿帮忙的
not wanting to help someone, in a way that seems unfriendly
The shop assistant was rude and unhelpful. 那个售货员态度很差，不愿帮忙。