English

Definition of erroneous adjective from the Oxford Advanced Learner's Dictionary

  

erroneous

 adjective
adjective
BrE BrE//ɪˈrəʊniəs//
 
; NAmE NAmE//ɪˈroʊniəs//
 
(formal)
 
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not correct; based on wrong information erroneous conclusions/assumptions He seems to be under the erroneous impression that she is in love with him. The theory is based on several erroneous beliefs. Their conclusions are quite erroneous. Word Origin late Middle English: from Latin erroneus (from erro(n-) ‘vagabond’, from errare ‘to stray, err’) + -ous.
See the Oxford Advanced American Dictionary entry: erroneous