a ‧ nach ‧ ro ‧ nis ‧ m /əˈnækrənɪz ə m/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Origin: Probably from Medieval Greek anachronismos , from Greek ana- 'back' + chronos 'time' ]
1 . someone or something that seems to belong to the past, not the present:
The monarchy is something of an anachronism these days.
2 . something in a play, film etc that seems wrong because it did not exist in the period of history in which the play etc is set:
The film is full of anachronisms.
—anachronistic /əˌnækrəˈnɪstɪk◂/ adjective :
His painting style was seen as outdated and anachronistic.