/ Dictionary / Index S scatterbrain: Meaning and Definition of Find definitions for: scat•ter•brain Pronunciation: (skat'ur-brān"), [key] — n. a person incapable of serious, connected thought. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: scatterbrain (Thesaurus) scatteration scatter diagram Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language