slack-jawed

American  

[slak-jawd] / ˈslækˈdʒɔd /

adjective

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

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Etymology

Origin of slack-jawed

slack jaw + -ed ³

Example Sentences

We got out and stared slack-jawed at the deep pile of gray ash, and the painted number on the curb, 1160, all that was left.

From Los Angeles Times

When Sandler landed at “Saturday Night Live,” Herlihy helped him devise sketch characters like the slack-jawed Canteen Boy.

From Los Angeles Times

He confidently illustrates what he’s deduced by drawing a grid on a whiteboard and yammering as his suspects and colleagues watch, slack-jawed.

From Salon

Hopefully there is a point to that interaction other than shock value and Rick reacting in slack-jawed silence.

From Los Angeles Times

Pattinson has incredible physical control over both 17’s slack-jawed, knock-kneed cartoon and his identical opposite.

From Los Angeles Times