er ‧ ro ‧ ne ‧ ous AC /ɪˈrəʊniəs $ ɪˈroʊ-/ BrE AmE adjective formal
[ Word Family: noun : ↑ error ; adjective : ↑ erroneous ]
[ Date: 1300-1400 ; Language: Latin ; Origin: erroneus , from errare ; ⇨ ↑ err ]
erroneous ideas or information are wrong and based on facts that are not correct SYN incorrect :
His economic predictions are based on some erroneous assumptions.
—erroneously adverb