/ Dictionary / Index M misspend: Meaning and Definition of Find definitions for: mis•spend Pronunciation: (mis-spend'), [key] — -spent, -spend•ing. to spend wrongly or unwisely; squander; waste. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misspend (Thesaurus) misspelling misspent Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language