speechless /ˈspiːt͡ʃ.lɪs/ adjective2 •Not speaking; not knowing what to say; silent, especially due to surprise, amazement, etc.; wordless.When he walked into his surprise birthday party, he was completely speechless. •(no longer used) Synonym of unspeakable.Immortal Pleasures round my swimming Eyes did dance, And speechless Joys, in whose sweet Tumult tost, I thought my Breath, and my new Being lost. — 1690
