啞aa2口hau2無mou4言jin4

English

1. dumbstruck and unable to reply (idiom)
2. to be unable to say anything; to have no further arguments to justify oneself
3. left speechless; at a loss for words

粵語 — Cantonese

1. 俾人質問或者駁斥嗰陣，唔出聲、冇嘢好講

Examples

• 佢準備不足，俾人問到啞口無言。

  He was not well-prepared, and he couldn't say anything to respond.

• 她注视着一个不明飞行物，哑口无言。

  She stared at a UFO in silence.

  Tatoeba · sadhen CC BY