Accidentally

[Sarah]

In an accidental manner; unexpectedly; by chance;unintentionally; casually; fortuitously; not essentially.

[Sarah]

adverb: by mistake, unintentional

verb: the whole thing

[Sarah]

transitive verb, past tense: To break beyond repair, or lose completely, or do something catastrophic or highly objectionable or problematic to. Ostensibly by accident but most often used ironically for a purposeful act.

[Sarah]

Verb:
To make mistakes in a sentence such that the sentence is impossible to comprehend. Usually when a verb, adjective, noun or pronoun is misplaced or missing. Failing to put a period can lead to an accidentally (components of one sentence can be confused to be in another. Thus misplaced components).
Usually used by the person responding to the sentence as a form of irony (since accidentally is an adjective, so using it as a verb would mean it is misplaced).
Using an accidentally is an accidentally.

[Vania]

By chance; inadvertently.