explicit
英 [ɪkˈsplɪsɪt]   美 [ɪkˈsplɪsɪt]  
adj.
明确的;清楚明白的;易于理解的;(说话)清晰的;直言的;坦率的;不隐晦的;不含糊的

例句

The reasons for the decision should be made explicit.

应该直截了当给出决定的理由。

She was quite explicit about why she had left.

她对自己离开的原因直言不讳