[ pur-spi-key-shuhs ]
/ ˌpɜr spɪˈkeɪ ʃəs /


having keen mental perception and understanding; discerning: to exhibit perspicacious judgment.
Archaic. having keen vision.

Origin of perspicacious

First recorded in 1610–20; perspicaci(ty) + -ous

Related forms

per·spi·ca·cious·ly, adverbper·spi·ca·cious·ness, noun

Can be confused

perspicacious perspicuous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for perspicacious

British Dictionary definitions for perspicacious


/ (ˌpɜːspɪˈkeɪʃəs) /


acutely perceptive or discerning
archaic having keen eyesight

Derived Forms

perspicaciously, adverbperspicacity (ˌpɜːspɪˈkæsɪtɪ) or perspicaciousness, noun

Word Origin for perspicacious

C17: from Latin perspicax, from perspicere to look at closely; see perspective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012