forthright

forthright
/ˈfɔ:θraɪt; fɔrθ`raɪt/ adj
clear and honest in manner and speech; straightforward 言行坦诚的; 直率的
    He has a reputation for being a forthright critic. 他是以直率著称的评论家.
    condemnation in the most forthright language 直言不讳的谴责.

牛津英汉双解词典