mistake
Definitions
An action or judgment that is misguided or wrong.
A misunderstanding or incorrect interpretation of something.
To identify or interpret someone or something incorrectly.
Examples
It was a big mistake to trust him with the secret.
Everyone makes a mistake once in a while, so do not be too hard on yourself.
Synonyms
error blunder slip oversight fault inaccuracy miscalculation
Antonyms
accuracy precision correctness truth fact perfection certainty