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Synonyms

erroneous

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

adjective

  1. containing error; mistaken; incorrect; wrong.

    an erroneous answer.

    Synonyms:
    false, untrue, inaccurate
    Antonyms:
    accurate
  2. straying from what is moral, decent, proper, etc.


erroneous British  
/ ɪˈrəʊnɪəs /

adjective

  1. based on or containing error; mistaken; incorrect

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of erroneous

First recorded in 1350–1400; Middle English, from Latin errōneus “straying,” equivalent to errōn- (stem of errō ) “wanderer” (derivative of err-; see err) + -eus adjective suffix ( see -eous)

Explanation

The adjective erroneous describes something or someone as mistaken and incorrect. Early explorers had the erroneous notion that the oceans were full of dragons. When we talk about being on the "straight and narrow path" we aim to live a truthful and moral life. The Latin root of erroneous, or "to be incorrect" as well as "to be immoral," is errare, which means "to wander." It's clear that we make connections between behavior and direction or space. These two ideas have been linked for a very long time!

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Vocabulary lists containing erroneous

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.

See Examples For:

The company added that updates to correct the erroneous collections reports should be reflected on credit reports within three business days.

From The Wall Street Journal Aug. 4, 2026

The erroneous map appeared during a State Department slide presentation about Washington's funding for programmes tackling HIV at an Aids conference in Brazil on Sunday.

From BBC Jul. 31, 2026

The data behind the statistics on aging are incomplete or erroneous, leading to skewed reports.

From The Wall Street Journal Jun. 5, 2026

Sethi and Rounds made the erroneous filings in a request to the appeals court to review an immigration decision.

From Los Angeles Times Jun. 4, 2026

The age listed is erroneous, a detail few readers perceive.

From "The Night Circus" by Erin Morgenstern

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