archaic
adj. C1 Advanced Oxford US //ɑɹˈkeɪɪk// UK //ɑːkˈeɪɪk// ar·cha·ic
adj. very old and no longer commonly used. You use this to describe things like old laws, technology, or words that feel like they belong to the past.
adj. relating to or characteristic of a much earlier period; old-fashioned or obsolete. Used frequently in linguistics to describe words or phrases that have fallen out of common usage but are still understood.
The office still uses an archaic filing system.
Many people find the archaic language of legal documents difficult to read without professional help.
While the museum displays archaic tools from the bronze age, the curator notes that some indigenous communities still employ similar principles for sustainable craftsmanship today.