ANACHRONISM (Noun)

Meaning- 1) Anything done or existing out of date: hence, anything that was proper to a former age, but is, or, if it existed, would be, out of harmony with the present.

                        2) Something (such as a word, an object, or an event) that is not in its chronological or historical order.

Mnemonic trick- a/an is a root word for not and chon is a root word for time. Therefore, anachronism means something that is mistakenly placed with respect to time in a story, movie etc. or something that is not in its chronological or historical order.

Synonym- INCONGRUOUS

Uses-

•          The novel is full of anachronisms.
•          He is good in acting but he is old-fashioned. He is seen by many of his colleagues as an anachronism.
•          This video will show ten biggest anachronisms in Hollywood movies.