adjective
- extremely surprised and confused; unable to speak or react because of shock
Usage: informal; often used as past participle of 'dumbfounder' (verb)
Examples
- She was completely dumbfoundered when she won the lottery.
- The audience sat dumbfoundered after the shocking plot twist.
- He looked dumbfoundered when she announced her surprise engagement.
- The team was dumbfoundered by the unexpected loss in the final seconds.
- I was left dumbfoundered by his rude comment at the dinner table.