Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Latin
Origin: erroneus, from errare; ERR

erroneous

 adjective
     
er‧ro‧ne‧ous formal
erroneous ideas or information are wrong and based on facts that are not correct:
His economic predictions are based on some erroneous assumptions.
—erroneously adverb
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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