accidentally

adverb

ac·​ci·​dent·​al·​ly ˌak-sə-ˈdent-lē How to pronounce accidentally (audio) -ˈden-tᵊl-ē How to pronounce accidentally (audio)
: in an accidental or unintended manner : by accident
I accidentally deleted the file.
The lock prevents the gate from opening accidentally.
Six lionfish were accidentally released from a home aquarium in Biscayne Bay, Fla., during Hurricane Andrew in 1992.Alcestis Cooky Oberg
The Olympic test was thrown out after the test lab accidentally destroyed the backup sample … that's required to confirm a positive result.Christie Aschwanden
He bumped into her accidentally on purpose. [=he bumped into her intentionally but he tried to make it appear to be an accident]

Examples of accidentally in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Even if your pet accidentally stains your carpet, this cleaner easily removes the mess. Moriah Mason, Southern Living, 14 Jan. 2025 By separating out the foods, Rice was trying to establish if cross-contact, when an allergen is accidentally transferred from one food to another, had occurred. Michael Gfoeller and David H. Rundell, Newsweek, 14 Jan. 2025 If someone accidentally drags a chain behind their truck, unknowingly sending sparks into the air, that too can set our hills ablaze. Deborah Netburn, Los Angeles Times, 14 Jan. 2025 Now, if someone scans data and deliberately decides to delete it or accidentally does so, that’s a different story. Lance Eliot, Forbes, 13 Jan. 2025 See all Example Sentences for accidentally 

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of accidentally was in the 14th century

Dictionary Entries Near accidentally

Cite this Entry

“Accidentally.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/accidentally. Accessed 19 Jan. 2025.

Last Updated: - Updated example sentences
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