inadvertent
The text was edited in a way that inadvertently changed its meaning.
I'm worried that we might be inadvertently watering down the quality of the data.
We inadvertently threw away some of the receipts.

SMART Vocabulary: related words and phrases

Not expected or planned
abrupt end
abrupt halt
abruptly
abruptness
ad hoc
inadvertence
inadvertency
inadvertent
inconceivable
inconceivably
sine die
spirit
spontaneity
spontaneous
spontaneously
unsuspected
untimely
untoward
unwilled
unwitting