accidentally
US /ˌæk.səˈden.t̬əl.i/
UK /ˌæk.səˈden.t̬əl.i/

1.
acidentalmente, por acaso
by chance; unintentionally or unexpectedly
:
•
I accidentally deleted the file.
Eu acidentalmente apaguei o arquivo.
•
She accidentally bumped into him at the store.
Ela acidentalmente esbarrou nele na loja.