[ suh-gey-shuhs ]
/ səˈgeɪ ʃəs /


having or showing acute mental discernment and keen practical sense; shrewd: Socrates, that sagacious Greek philosopher, believed that the easiest way to learn was by asking questions.
Obsolete. having an acute sense of smell.

Origin of sagacious

First recorded in 1600–10; sagaci(ty) + -ous

OTHER WORDS FROM sagacious Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for unsagacious

/ (səˈɡeɪʃəs) /


having or showing sagacity; wise
obsolete (of hounds) having an acute sense of smell

Derived forms of sagacious

sagaciously, adverbsagaciousness, noun

Word Origin for sagacious

C17: from Latin sagāx, from sāgīre to be astute
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