Once considered giants in the field, they had become obsolete.

However, in recent 50 years, this word has become obsolete.

Various systems are still in use, though many have become obsolete.

In politics, it does not really matter anymore who is president, and Congress has become obsolete.

It is not as though traditional agencies have become obsolete, of course.

In that period, he and others said, the technology will have become obsolete.

It was a rare find in the field during the mid1990s, but has since become obsolete.

As of the late 1980s, it may have become obsolete.

As new technology is developed, buildings only a few years old become obsolete.

If their function has become obsolete, they should have access to similar jobs with the same conditions.