Synonyms:
- Several eras behind
- Stubbornly refusing to modernise
- A relic of a forgotten age
- Still running on ancient logic
- Clinging to obsolete ways
- Incompatible with the present
- Baffling to the modern world
- Passed over in favour of everything else
- A historical curiosity
- Left behind by progress
- Running on borrowed time
- A museum piece in active use