1. belonging to a time period other than the one being portrayed; out of place in time
2. seeming to belong to an earlier time; old-fashioned

Examples

• The movie’s anachronistic use of modern slang in a medieval setting was jarring.
• His anachronistic views on women’s roles seemed out of place in the 21st century.
• The knight carrying a wristwatch was an anachronistic detail in the historical painting.
• Her anachronistic teaching methods relied heavily on rote memorization.
• The film contained several anachronistic elements, including cars in ancient Rome.
• His anachronistic mannerisms made him seem like he belonged in another era.