/ Dictionary / Index S speechless: Meaning and Definition of Find definitions for: speech•less Pronunciation: (spēch'lis), [key] — adj. temporarily deprived of speech by strong emotion, physical weakness, exhaustion, etc.: speechless with alarm. characterized by absence or loss of speech: speechless joy. lacking the faculty of speech; dumb. not expressed in speech or words: speechless compliments. refraining from speech. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: speechless (Thesaurus) speech island speechmaker Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language