adv Uncommon

mistakenly

mih-STAY-kuhn-lee

Mistakenly (adv) means In a way that is wrong or due to an error; by accident. Example: “He mistakenly sent the email to the whole office.”

adv

In a way that is wrong or due to an error; by accident.

"He mistakenly sent the email to the whole office."

"She mistakenly assumed the store was closed."

How to use mistakenly

Learner’s notes

In plain EnglishBy error, without meaning to.

Common pairings

mistakenly believed mistakenly assumed

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Can you complete this real example?

He _____ sent the email to the whole office.

From mistaken plus the adverb-forming suffix -ly.

erroneously

incorrectly falsely erroneously

evenly openly keenly suddenly heavenly drunkenly

What does “mistakenly” mean?

The word “mistakenly” means in a way that is wrong or due to an error; by accident. In plain terms, by error, without meaning to.

How do you pronounce “mistakenly”?

“Mistakenly” is pronounced mih-STAY-kuhn-lee (/mɪˈsteɪ.kən.li/ in IPA).

How do you use “mistakenly” in a sentence?

Here is “mistakenly” used in a sentence: “He mistakenly sent the email to the whole office.”

What part of speech is “mistakenly”?

“Mistakenly” is an adverb.

Is “mistakenly” a common word?

“Mistakenly” is an uncommon word in modern English.

incorrectly falsely erroneously