📒 a person, a custom or an idea that seems old-fashioned and does not belong to the present
The monarchy is seen by many people as an anachronism in the modern world.
She said nuclear weapons were an anachronism in the post cold war era.
📒 something that is placed, for example in a book or play, in the wrong period of history; the fact of placing something in the wrong period of history
The book is full of anachronisms which suggests there were parts rewritten in later centuries.
the charges of anachronism levelled against the film