Clear and concise; expressed briefly and in a way that is easy to understand.
上司に提出する報告書は簡潔明瞭にまとめてください。
Please make the report you submit to your boss clear and concise.
プレゼンは簡潔明瞭に話すことが大切だ。
It's important to present in a clear and concise manner.
彼の説明は簡潔明瞭で、誰にでも分かりやすかった。
His explanation was clear and concise, easy for anyone to understand.