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to blunder
01
to commit an embarrassing and serious mistake out of carelessness or stupidity
02
to say something out loud thoughtlessly
03
make one's way clumsily or blindly
Пример
The team’s blunder in communication resulted in the missed deadline.
The manager's blunder in the financial report led to a significant loss for the company.
She made a blunder in her calculations, which caused the project to be delayed.
His blunder during the presentation was embarrassing and noticeable to everyone.
The referee's blunder in calling the foul affected the outcome of the game.