render something useless

Without the absolutely best security the entire operation would have been rendered useless.

All of the plans they had made earlier were rendered useless by her disability.

Guns taken from a home during a robbery would be rendered useless, too.

We are told that in such cases they were spiked and rendered useless.

Eventually, the existing form of monetary control would be rendered useless.

Since Germany's current approaches had been rendered useless, an entirely new system would have to be developed.

It had rendered useless the normal searching systems of the Enterprise.

Stuck in the 17th Century with a piece of paper rendered useless because nobody at the time knew about global corporations.

Had he stayed two minutes longer, his false tale of death would have been rendered useless.

They seem to have been rendered largely useless by the bombing, but parts may be of some value.