SPEECHLESS /ˈspiːtʃ.lɪs/ ► audio Scrabble 17 Words With Friends 19 Definition adjective temporarily incapable of speaking. — synonyms: dumb Examples “When he walked into his surprise birthday party, he was completely speechless.”“an unspeakable fool” See all 90 words you can make from SPEECHLESS → 10-letter words Words starting with S Words ending with S ← Unscramble different letters