Simple and clear; straightforward and easy to understand.
このマニュアルは図と例が多く、単純明快で初心者にも安心だ。
This manual has many diagrams and examples; it's simple and clear, so beginners can feel at ease.
問題点を単純明快に整理してから会議で発表した。
I organized the issues simply and clearly before presenting them at the meeting.
彼の説明は長々しくなく、単純明快で理解しやすい。
His explanation wasn't long-winded; it was simple and clear and easy to understand.
単純明快な結論が得られれば、次のステップに進みやすい。
If a simple, clear conclusion can be reached, it's easier to move on to the next step.