From Longman Dictionary of Contemporary Englishanachronisma‧nach‧ro‧nis‧m /əˈnækrənɪzəm/ noun [countable] 1 OLD-FASHIONEDsomeone or something that seems to belong to the past, not the present The monarchy is something of an anachronism these days.2 MISTAKEsomething 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 —anachronistic /əˌnækrəˈnɪstɪk◂/ adjective His painting style was seen as outdated and anachronistic.
Examples from the Corpus
anachronism• The idea of the great house as a pattern for everyone is already an anachronism in the mind of Sir Leicester.• The harvest festival celebrations in the town are an anachronism since almost everyone who lives there nowadays works in an office.• He often expressed his conviction that a closed society is an anachronism in a global society.• Isn't the school just an anachronism?• The law on mining is simply an anachronism in this day and age.• There are anachronisms and incongruities over what properly appertains to a given age or nation.• Compound interest and present-value tables have rapidly become anachronisms.• The hostel was named Rameses Villa; a charming anachronism.• Kinton was a ridiculous, out-dated anachronism, perhaps, but no more of an anachronism than Mabel herself.Origin anachronism (1600-1700) Probably from Medieval Greek anachronismos, from Greek ana- “back” + chronos “time” 