/ˌpərspɪˈkeɪʃəs/ pərspɪ-KAY-shəs

Definitions

1. adjective

Having a keen understanding and insight; able to notice and understand things that are not immediately apparent.

“She was a perspicacious observer of human behavior.”

2. noun

A person who is perspicacious.

“He’s a perspicacious critic, always spotting the flaws in a work.”