/ Dictionary / Index M mousey: Meaning and Definition of Find definitions for: mous•ey Pronunciation: (mou'sē, -zē), [key] — mous•i•er, mous•i•est. mousy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mousey (Thesaurus) mousetrap mousing Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language