adjective Date: 15th century clamorous , vociferous , having the mouth wide open, struck with amazement or wonder, ~ly adverb ~ness noun
OPENMOUTHED
Meaning of OPENMOUTHED in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012