accidentally
Americanadverb
-
by chance or mistake; in a way that is not planned or intended.
If you break your key, whether accidentally or on purpose, there is a $40 charge to replace it.
-
in a nonessential or subsidiary way; incidentally.
Philosophy is essentially a vocation, and only accidentally a profession.
Usage
Spelling tips for accidentally The word accidentally is hard to spell because it can be hard to remember which letters are doubled and which are not. To add to the confusion, there are two possible spellings of accidentally. While less common, accidently is also an acceptable spelling of the word. How to spell accidentally: It's no accident that many animals have two eyes to see (C) And two ears to Listen (L). This reminds you that the letters c and l are doubled in accidentally, with an a in between.
Other Word Forms
Etymology
Origin of accidentally
Explanation
If something happens accidentally, it didn't happen on purpose — blame it on a mistake, chance, or outside forces. There are things you mean to do, like brushing your hair or buttoning your shirt. Then there are things you do accidentally: you didn't mean for them to happen, but they happened anyway. Just about all spilled milk happens accidentally. If a surgeon leaves a scalpel in a patient, let's hope he did it accidentally. And if a football bounces off a defender into the running back's arms and he scores a touchdown, he made a great play — accidentally.
Vocabulary lists containing accidentally
Selection Vocabulary 2, Unit 2
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Spelling Practice 2, Unit 1
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A memorable moment for Gethings came when he accidentally met Armstrong - the first man to have ever walked on the moon.
From BBC ● Oct. 11, 2026
It has the best energy for an afternoon drink that accidentally turns into date night or three more drinks with your girlfriends.
From The Wall Street Journal ● Oct. 8, 2026
There are the now-traditional scenes in which Carrie learns to consciously control her telekinetic superpowers, previously manifested by accidentally setting off car alarms, opening mailboxes and causing a rain of rocks on her parents’ roof.
From Los Angeles Times ● Oct. 6, 2026
"I've learned to think about the whole picture with locks, alarms, lights, what you're posting online and whether you're accidentally advertising that nobody's home."
From BBC ● Sep. 27, 2026
There’s a tiny scar above his left eyebrow from when Avery accidentally scraped him with a stick when we were seven, and it’s pale and shiny under the overhead lights.
From "Keeping Pace" by Laurie Morrison
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
