To get straight to the point; to speak frankly without beating around the bush.
単刀直入に言うと、あなたの企画には大幅な修正が必要だ。
To be blunt, your proposal needs major revisions.
面接官は単刀直入に志望動機を聞いてきた。
The interviewer asked my motivation for applying straight to the point.
無駄な前置きはせず、単刀直入に要点だけ話した。
Without unnecessary preamble, I spoke only the main points directly.