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Synonyms

erroneously

American  
[ih-roh-nee-uhs-lee, e-roh-] / ɪˈroʊ ni əs li, ɛˈroʊ- /

adverb

  1. incorrectly; wrongly.

    For years I recorded my birth date erroneously as July 1, until I discovered from my father’s diary that it was actually July 30.

  2. by mistake; unintentionally.

    I just posted these comments again because they were erroneously wiped out the first time due to a technical issue.


Other Word Forms

  • nonerroneously adverb

Etymology

Origin of erroneously

erroneous ( def. ) + -ly

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.

Its explanation, however, in effect said that AI didn’t generate the troublesome software coding itself, but did give an engineer instructions about how to write the code — erroneously.

From Los Angeles Times • Mar. 30, 2026

The nation's first Games gold in 18 years had been won by what was dismissively - and erroneously - described at the time as a group of Scottish housewives in an odd little sport.

From BBC • Feb. 18, 2026

Kelly went on to scold Poehler for a brief moment during the episode when Poehler erroneously thought Paltrow starred in the 2003 drama, “Cold Mountain,” saying that the mistake was “embarrassing and disrespectful.”

From Salon • Jan. 16, 2026

Some doctors are erroneously shown in states or cities where they don’t actually work.

From The Wall Street Journal • Nov. 18, 2025

On the negative side, arts teachers are seen as separate “specialists,” which erroneously relieves the classroom teacher of any responsibility for incorporating the arts into the daily classroom experience.

From "Music and the Child" by Natalie Sarrazin