/ Dictionary / Index F fatness: Meaning and Definition of Find definitions for: fat•ness Pronunciation: (fat'nis), [key] — n. the state or condition of being fat; obesity; corpulence. richness; fertility; abundance: the fatness of the land. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fatness (Thesaurus) fat meat fat pine Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language