accidental

1 of 2

adjective

ac·​ci·​den·​tal ˌak-sə-ˈden-tᵊl How to pronounce accidental (audio)
1
a
: occurring unexpectedly or by chance
an accidental discovery
Their meeting was purely accidental.
b
: happening without intent or through carelessness and often with unfortunate results
The death was ruled accidental.
2
: arising from extrinsic causes : incidental, nonessential
3
of a bird : appearing outside its normal geographic range, migration route, or season
accidentalness noun

accidental

2 of 2

noun

1
: a nonessential property
2
a
music : a note foreign to a key indicated by a signature
b
: a prefixed sign indicating an accidental
3
: a bird found outside its normal geographic range, migration route, or season : vagrant

Frequently Asked Questions

What is the difference between accidental and incidental?

Accidental describes what was not planned or intended. It means "happening by accident" or "happening as an accident," as in "an accidental discovery" and "an accidental injury." Incidental typically means "happening as a minor part or result of something else," as in "a chapter that is incidental to the novel's plot." For more information read the full article.

Do you say 'on accident' or 'by accident'?

While both "by accident" and "on accident" are used, "by accident" is far more common.

What does 'accident waiting to happen' mean?

The phrase "an accident waiting to happen" refers to a person or thing that is dangerous or unsafe. For example, a very clumsy person and a rickety ladder might both be referred to as "an accident waiting to happen."

Choose the Right Synonym for accidental

accidental, fortuitous, casual, contingent mean not amenable to planning or prediction.

accidental stresses chance.

any resemblance to actual persons is entirely accidental

fortuitous so strongly suggests chance that it often connotes entire absence of cause.

a series of fortuitous events

casual stresses lack of real or apparent premeditation or intent.

a casual encounter with a stranger

contingent suggests possibility of happening but stresses uncertainty and dependence on other future events for existence or occurrence.

the contingent effects of the proposed law

Examples of accidental in a Sentence

Adjective an accidental discovery of oil The timing of the announcement was purely accidental. The death was ruled accidental.
Recent Examples on the Web
Adjective
At least one child has died in an accidental shooting. Katie Moore, Kansas City Star, 26 Apr. 2024 It’s been a Hollywood favorite since debuting in 2021, with Kristen Stewart being one of the Lip Locket’s main accidental ambassadors. Anna Tingley, Variety, 25 Apr. 2024 Aurora police is investigating the death as accidental, Longshore said. Saja Hindi, The Denver Post, 22 Apr. 2024 The event is hosted by the city of Chula Vista Office of Sustainability, Chula Vista Police Department and U.S. Drug Enforcement Administration to reduce accidental poisonings, misuse and abuse of old outdated medications. Linda McIntosh, San Diego Union-Tribune, 20 Apr. 2024 This is ultra important because neglect in doing so can result in an accidental house fire. Ella Gonzales, Fort Worth Star-Telegram, 17 Apr. 2024 Delevingne has done a masterful job keeping the accidental L hidden from public view over the last few months, either by wearing sleeves or long gloves over the error, or simply by posing with her left arm away from the camera. Marci Robin, Allure, 15 Apr. 2024 Four of the shootings were accidental and four were escalations of disputes. L. M. Boyd, The Arizona Republic, 15 Apr. 2024 Hurt shifted the subject to another family whose daughter was killed in an accidental shooting committed by a man who migrated illegally from Mexico. James Rainey, Los Angeles Times, 12 Apr. 2024
Noun
Ana Walshe’s former home in Cohasset burned down in a fire on Saturday night, though investigators deemed the fire accidental, CBS News Boston reported. Conor Murray, Forbes, 18 Jan. 2023 Authorities arrested her boyfriend before declaring the death accidental. Andrew Mark Miller, Fox News, 13 Jan. 2023 Authorities ultimately ruled the death accidental, noting that Jenkins was intoxicated and died of hypothermia, according to NBC New York affiliate WNBC. Char Adams, NBC News, 22 Nov. 2022 The Nevada County Sheriff's Office said in a statement the coroner ruled Rodni's death accidental. CBS News, 14 Oct. 2022 Lansbury was also determined that her own role as the author-cum-accidental detective Jessica Fletcher wasn’t warped by the sexist stereotypes that writers often fell back on. Holly Thomas, CNN, 14 Oct. 2022 Though authorities initially considered the death accidental, the ​​autopsy report later led investigators to believe that Kathleen died not after a fall but after being attacked. Kelsie Gibson, PEOPLE.com, 5 May 2022 The county sheriff ruled Rishell’s death accidental, and her family had remained close with Harold. Rachel Monroe, Outside Online, 16 Oct. 2018 After Saget's family shared their statement, the medical examiner also released their findings, ruling Saget's death accidental. Greta Bjornson, PEOPLE.com, 16 Feb. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'accidental.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Adjective

Middle English, borrowed from Anglo-French accidentel, borrowed from Late Latin accidentālis, from Latin accident-, accidens accident + -ālis -al entry 1

Noun

Middle English, borrowed from Medieval Latin accidentālis, noun derivative of Late Latin accidentālis accidental entry 1

First Known Use

Adjective

14th century, in the meaning defined at sense 2

Noun

14th century, in the meaning defined at sense 1

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

Dictionary Entries Near accidental

Cite this Entry

“Accidental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/accidental. Accessed 2 May. 2024.

Kids Definition

accidental

1 of 2 adjective
ac·​ci·​den·​tal ˌak-sə-ˈdent-ᵊl How to pronounce accidental (audio)
1
: happening unexpectedly or by chance
an accidental discovery of oil
2
: not happening or done on purpose
an accidental fall
accidentally
-ˈdent-lē How to pronounce accidental (audio)
-ˈdent-ᵊl-ē
adverb

accidental

2 of 2 noun
: a musical note whose pitch is changed (as by a sharp or a flat) from the pitch shown in the key signature

More from Merriam-Webster on accidental

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