/ Dictionary / Index S sonsy: Meaning and Definition of Find definitions for: son•sy Pronunciation: (son'sē), [key] — -si•er, -si•est. strong and healthy; robust. agreeable; good-natured. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sonsy (Thesaurus) Sonsonate Sontag Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language