Translation

洞察力の鋭い / 鋭敏な / 見抜く力のある

Meaning

Perspicacious describes a person, judgment, or observation that notices and understands things quickly and accurately. It is about insight and mental sharpness, not clear wording. Use perspicuous for clear writing or explanations.

Examples

• 彼女は市場の変化を見抜く洞察力の鋭い投資家です。
  She is a perspicacious investor who spots changes in the market.
• その批評家は映画の弱点について鋭い観察をしました。
  The critic made a perspicacious observation about the film's weakness.