perspicacious — English Dictionary

Adjective

1. Of acute discernment; having keen insight; mentally perceptive.

   Usage

   • Figurative

   Examples

   As a gay prisoner my incarceration has given me a perspicacious view of our judicial system.

2. Able to physically see clearly; quick-sighted; sharp-sighted.

   Usage

   • Obsolete

Adjective

1. acutely insightful and wise

   Synonyms

   sagacioussapient

   Examples

   much too perspicacious to be taken in by such a spurious argument

   observant and thoughtful, he was given to asking sagacious questions

   More examples (1)

   a source of valuable insights and sapient advice to educators

2. mentally acute or penetratingly discerning

   Synonyms

   clear-eyedclear-sighted

   Examples

   too clear-eyed not to see what problems would follow

   chaos could be prevented only by clear-sighted leadership

   More examples (1)

   much too perspicacious to be taken in by so spurious an argument