/ Dictionary / Index W well-grounded: Meaning and Definition of Find definitions for: well-ground•ed Pronunciation: (wel'groun'did), [key] — adj. based on good reasons; well-founded: His opposition to the scheme is well-grounded. well or thoroughly instructed in the basic principles of a subject: She is well-grounded in mathematics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: well-grounded (Thesaurus) well-groomed well-handled Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language