Obsolete

From Wikipedia, a free encyclopedia written in simple English for easy reading.

If something is obsolete, it is out of date. This does not mean that it is useless. It simply means that there is a newer version which is better. Computers become obsolete very fast because new processors are designed all the time. Other things, like ships for example, take a long time to become obsolete as the pace of development is slower.

If something is becoming obsolete, it can be described as obsolescent.