/ Dictionary / Index M messily: Meaning and Definition of Find definitions for: mess•i•ly Pronunciation: (mes'u-lē), [key] — adv. in a messy manner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: messily (Thesaurus) messieurs messin Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language