/ Dictionary / Index M muddlehead: Meaning and Definition of Find definitions for: mud•dle•head Pronunciation: (mud'l-hed"), [key] — n. Informal. a stupid person; blunderer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. muddle muddleheaded Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language