Definition of "accidentally" []

• In an accidental manner; unexpectedly; by chance; casually; fortuitously. (adverb)
• Unintentionally. (adverb)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "The sitting-room has its solitary moments, when any two boarders who wish to meet may come together accidentally, (_accidentally_, I said, Madam, and"
• "Both sides are unaware of the other until Zuckerberg's baby is officially launched and Saverin accidentally comes across a notice from the Winklevoss camp to take down the Facebook site."
• "I agree with Lois - Not only has no poet ever seen the kind of money James Patterson makes, there's also that smarmy tone Amanda Urban uses: when she says "some poet" she makes poets sound like something you step in accidentally on the sidewalk."