1. very old or old-fashioned; no longer in common use
2. belonging to an earlier period of time, especially in language or art
Usage: often used in linguistics and literature

Examples

• The poem contains many archaic words that are no longer used today.
• His archaic views on technology made him resistant to using computers.
• The museum displayed archaic tools from the Bronze Age.
• Shakespeare’s plays include archaic forms of English.
• The company’s archaic filing system needed to be updated.
• Archaic laws from the 1800s were finally repealed.
• The building’s archaic heating system was inefficient and costly.