adj
dumbfounded
adj
1
So surprised or shocked that one is unable to speak or react.
"She stood dumbfounded when she saw the surprise party."
How to Use Dumbfounded
Learner’s notesIn plain EnglishLeft speechless by shock or surprise.
Common pairings
left dumbfounded
stand dumbfounded
Word Forms
more dumbfounded comparative, most dumbfounded superlative
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She stood _____ when she saw the surprise party.