obsolete
adjective
no longer in general use; fallen into disuse:
an obsolete expression.
Antonyms: modern, new
of a discarded or outmoded type; out of date:
an obsolete battleship.
Synonyms: old, ancient, antiquated
Antonyms: modern, new
Example
This computer may look futuristic but it is an antique (released in 1998).
You could go online with it but it would not be safe to do so. This computer is officially obsolete and has not received any security updates in a very long time.
Apple (the manufacturer) will not service this computer.
