Dictionary.com
definitions
  • synonyms

sagacious

[suh-gey-shuh s]
See more synonyms for sagacious on Thesaurus.com
adjective
  1. having or showing acute mental discernment and keen practical sense; shrewd: a sagacious lawyer.
  2. Obsolete. keen of scent.
Show More

Origin of sagacious

First recorded in 1600–10; sagaci(ty) + -ous
Related formssa·ga·cious·ly, adverbsa·ga·cious·ness, nounqua·si-sa·ga·cious, adjectivequa·si-sa·ga·cious·ly, adverbsu·per·sa·ga·cious, adjectivesu·per·sa·ga·cious·ly, adverbsu·per·sa·ga·cious·ness, nounun·sa·ga·cious, adjectiveun·sa·ga·cious·ly, adverbun·sa·ga·cious·ness, noun

Synonyms

See more synonyms for sagacious on Thesaurus.com
1. wise, sage, discerning, clever, intelligent, judicious, acute, sharp, keen, perspicacious.

Antonyms

1. unwise.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for unsagacious

sagacious

adjective
  1. having or showing sagacity; wise
  2. obsolete (of hounds) having an acute sense of smell
Show More
Derived Formssagaciously, adverbsagaciousness, noun

Word Origin

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

Word Origin and History for unsagacious

sagacious

adj.

c.1600, from Latin sagacem (nominative sagax) "of quick perception;" see sagacity. Related: Sagaciously.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper