blunder
/ˈblʌn.də(ɹ)/
noun
Meaning
A clumsy or embarrassing mistake.
A very bad move, usually caused by some tactical oversight.
Synonyms
verb
Meaning
To make a clumsy or stupid mistake.
"to blunder in preparing a medical prescription"
To move blindly or clumsily.
To cause to make a mistake.
To do or treat in a blundering manner; to confuse.