This is the 8591st most frequent Portuguese word.
acidentalmente
Accidentally.
The term 'Acidentalmente' indicates the occurrence of the cat leaving as a result of an unintended opening of the door.
Acidentalmente, o gato saiu quando a porta foi aberta.
Accidentally, the cat went out when the door was opened.
In this sentence, 'acidentalmente' is used to describe an unintentional action of knocking over the glass.
Eu acidentalmente derrubei o copo.
I accidentally knocked over the glass.
Here, 'acidentalmente' conveys the unintended act of forwarding an email to the incorrect recipient.