speechless
Speechless (adj) means Unable to speak, especially because of shock, surprise, or strong emotion. Example: “She was speechless when she opened the door and saw everyone waiting.”
How to use speechless
Learner’s notesIn plain EnglishSo shocked or moved that you can't find any words.
Fill the gap
Can you complete this real example?
She was _____ when she opened the door and saw everyone waiting.
Etymology
From Old English sprǣċlēas, built from "speech" plus "-less" ("without").