あんぐり

with one's mouth agape, gaping

ã̠ ŋ ɡ ɯ̟ ɾʲ i
adverb Rare #38,383
with one's mouth agape, gaping Usually describes someone opening their mouth wide in surprise or amazement.
JA: 彼はあんぐり口を開けた。
EN: He opened his mouth wide in surprise.

何人かは口をあんぐり開けている。

Some people are standing there with their mouths agape.

デイヴィッドはあんぐりと口を開けた。

David's mouth dropped open in astonishment.

ホークソンはあんぐりと口を開けた。

Hawkson's mouth fell open in astonishment.