An idea, attitude, action, or thing that is out of step with its era; an anachronism—something outdated or inappropriate for the current times.
彼の考え方は時代錯誤だと若い世代から批判された。
His way of thinking was criticized by the younger generation as anachronistic.
その映画の衣装は意図的に時代錯誤の要素を取り入れている。
The film's costumes intentionally incorporate anachronistic elements.
古い習慣をただ守るだけでは時代錯誤になりかねない。
Simply sticking to old customs can risk becoming anachronistic.