accidentally
Definitions
In a way that is not planned or intended; by chance.
In a way that happens unexpectedly or unintentionally.
Examples
I accidentally deleted the important file from my computer.
She accidentally bumped into the table, causing the vase to fall.
He accidentally sent the email to the wrong recipient.
Synonyms
unintentionally inadvertently unwittingly unpremeditatedly casually fortuitously by chance
Antonyms
intentionally deliberately purposely knowingly willfully consciously designedly