IPA: /ˈoʊpənˌmaʊθd/
KK: /ˈoʊpənˌmaʊθd/
Having the mouth wide open, often due to surprise or amazement.
She stood openmouthed at the breathtaking view from the mountain.
Openmouthed → It is formed from "open" (from Old English "open", meaning not closed) and "mouthed" (from "mouth", which comes from Old English "muð", meaning the opening of the face used for eating and speaking). The word "openmouthed" describes someone with their mouth open, often in surprise or astonishment.
Think of someone whose mouth is 'not closed' ('open') and is wide 'like a mouth' ('mouthed') — this helps you remember that 'openmouthed' means having your mouth open, often in amazement.