ichidan verb, transitive verb
mistake for; fail to recognize
Used when you fail to recognize someone or something because of a change in appearance, or when you mistake one thing for another. Often appears in the potential form 見違えられる or negative 見違えない.
久しぶりに会った友達を見違えた。
I didn't recognize my friend whom I met after a long time.
彼女は別人のように見違
She was mistaken for a different person.