The children might not realize, and make a social blunder.
But the most amazing thing is that computer made a blunder on the last move.
He made a major blunder in laying out the line, however.
You've made a silly blunder, and you may as well own up to it.
The slam of the door told him he had made a bad blunder.
Did anyone near him present the case that he might be making a great historic blunder?
In Mark the feeling grew of just having made an enormous blunder.
She had just made a huge blunder going independent at the Academy, but this was different.
And if so, why did an experienced politician make such a blunder?
I read it and thought that Google had made a huge blunder.
Idiome