/ Dictionary / Index D dither: Meaning and Definition of Find definitions for: dith•er Pronunciation: (di'ur), [key] — n. a trembling; vibration. a state of flustered excitement or fear. —v.i. to act irresolutely; vacillate. to tremble with excitement or fear. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dither (Thesaurus) ditheism dithionate Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language