/ Dictionary / Index D dumbstruck: Meaning and Definition of Find definitions for: dumb•struck Pronunciation: (dum'struk"), [key] — adj. temporarily deprived of the power of speech, as by surprise or confusion; dumbfounded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dumbstruck (Thesaurus) dumb show dumbwaiter 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