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English definition of “open-mouthed”

open-mouthed

adjective     /ˌəʊ.pənˈmaʊðd/ US  /ˌoʊ-/
with your mouth wide open , especially because you are surprised or shocked : They stared open-mouthed at the extent of the damage .Surprised
(Definition of open-mouthed adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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