Meaning & Definition
adverb
In a manner resulting from an accident; unintentionally.
She accidentally spilled coffee on her shirt.
Without intention; by chance.
He accidentally discovered a hidden talent for painting.
By mistake.
They accidentally deleted the important files.
Unintentionally; not on purpose.
I accidentally sent the email to the wrong person.
Etymology
Late Middle English: from the phrase 'accidental' + 'ly'.
Common Phrases and Expressions
accidental discovery:
A finding made unexpectedly.
accidental injury:
Injury resulting from an unintentional act.
accidental damage:
Damage caused without intent or premeditation.
Slang Meanings
By mistake
I sent that email accidentally to the wrong person.
On accident
I deleted the file on accident.