slack-jawed

[ slak-jawd ]
/ ˈslækˈdʒɔd /

adjective

having the mouth open, especially as an indication of astonishment, bewilderment, etc.

Origin of slack-jawed

slack jaw + -ed3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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