Special adjective category

Something has been bugging me for several years. I seem to remember reading about a particular category of adjective. One that was not needed until a new adjective for the same noun came into existence.
Example 1. ‘Black and White’, referring to a television (remember them?) was not needed until colour televisions came into existence.
Example 2. ‘Landline’, referring to a fixed line telephone, was not needed until mobile phones came along.
I’m sure there must be many others, but I can’t think of them right now.
Does anyone know what the collective term for this type of adjective is? And does anyone have some more examples.
Thank you.