/ Dictionary / Index S sagacity: Meaning and Definition of Find definitions for: sa•gac•i•ty Pronunciation: (su-gas'i-tē), [key] — n. acuteness of mental discernment and soundness of judgment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sagacity (Thesaurus) sagacious Sagamihara Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language