Erroneous

//ɛɹˈoʊ.ni.əs// adj

adj ·Common ·High school level

Definitions

Adjective
  1. 1
    Containing an error; inaccurate.

    "His answer to the sum was erroneous."

  2. 2
    Derived from an error.

    "His conclusion was erroneous, since it was based on a false assumption."

  3. 3
    Mistaken.

    "Her choice at the line-up proved to be erroneous, as she had only seen the mugger for an instant."

  4. 4
    Wandering; erratic. obsolete
  5. 5
    Deviating from the requirements of the law, but without a lack of legal authority, thus not illegal.

    "If, while having the power to act, one commits error in the exercise of that power, he acts erroneously."

Adjective
  1. 1
    containing or characterized by error wordnet

Synonyms

All synonyms
fallaciousinaccurateincorrectmistakenwrongaberrant

Example

More examples

"There is something to be said for every error; but, whatever may be said for it, the most important thing to be said about it is that it is erroneous."

Etymology

From late Middle English erroneous, from Middle French erroneux, from Latin erroneus.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.