Definition of open-mouthed in English:

open-mouthed

Syllabification: o·pen-mouthed

adjective

With the mouth open, as in surprise or excitement: open-mouthed astonishment
More example sentences
  • At the sight of our caravan of motor vehicles, the locals along the road stopped work and gazed open-mouthed in surprise and amusement.
  • He stood there, open-mouthed, surprised that she was leaving.
  • Any triumphalism, filtered through the eyes of a child, is open-mouthed in its surprise and gratitude.
Synonyms
astounded, amazed, in amazement, surprised, stunned, bowled over, staggered, thunderstruck, aghast, agape, stupefied, dazed, taken aback, shocked, in shock, speechless, dumbfounded, dumbstruck, at a loss for words
informal flabbergasted

Definition of open-mouthed in:

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Word of the day oleaginous
Pronunciation: ˌōlēˈajənəs
adjective
rich in, covered with, or producing oil; oily