/ Dictionary / Index F fitly: Meaning and Definition of Find definitions for: fit•ly Pronunciation: (fit'lē), [key] — adv. in a proper or suitable manner. at a proper or suitable time. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fitly (Thesaurus) fitful fitment 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