speechless
Je suis resté sans voix tellement j'étais étonné.
I was speechless because I was so astonished.
La stupéfaction me laissa sans voix.
The amazement left me speechless.
À ses mots, je restais sans voix.
At his words, I was speechless.
I was speechless.
L'acteur est devenu sans voix quand il fut questionné sur sa vie privée.
The actor was rendered speechless when he was questioned about his private life.