incisive

这一论证深刻犀利，直击问题核心。

The argument is ___incisive, cutting directly to the heart of the issue.

编辑犀利的反馈切中要害，精确指出了稿件中不足的地方。

The editor's ___incisive feedback cut through the fluff and pinpointed exactly where the draft fell short.

这位喜剧演员对现代约会的犀利观察让观众捧腹大笑。

The comedian's ___incisive observations about modern dating had the audience roaring with laughter.