Often, after a single engagement, units were destroyed or rendered ineffective.

More than half the individuals who experience this relief report it to be rendered ineffective after sleeping the following night.

Both these techniques are rendered ineffective by the use of a sufficiently long salt.

They, too, are rendered ineffective in winds above 15 to 20 miles an hour.

Artillery support was rendered ineffective by the limited range of visibility.

Spanish troops had brought cannons with, but they were rendered ineffective by the walls of the church.

Even air action was rendered ineffective by poor weather.

The commission was rendered ineffective because of government refusal to respond to its inquiries.

He had rendered 99 robots ineffective but was unable to find the last one despite his intensive search.

As a result the Third Army was rendered ineffective for the rest of the year.