frank

这一批评坦率，令人耳目一新。

The critique is ___frank, refreshingly honest.

请坦率地告诉我你对这个计划的看法。

Please be ___frank and tell me what you think about this plan.

他总是很直率地表达自己的意见，从不拐弯抹角。

He is always ___frank about his opinions and never beats around the bush.