noun
Refers to something that is out of its proper historical time, such as an object, idea, or custom appearing in the wrong era.
その映画にはアナクロニズムがいくつか見られる。
Several anachronisms can be seen in that movie.
時代劇にスマートフォンが出てくるのは明らかな
A smartphone appearing in a period drama is an obvious anachronism.