/ Dictionary / Index M multitudinous: Meaning and Definition of Find definitions for: mul•ti•tu•di•nous Pronunciation: (mul"ti-td'n-us, -tyd'-), [key] — adj. forming a multitude or great number; existing, occurring, or present in great numbers; very numerous. comprising many items, parts, or elements. crowded or thronged. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: multitudinous (Thesaurus) multitude multiuser system Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language