But cable proved impractical and the line switched to electricity in May 1901.

Such a solution is, however, likely to prove impractical and cumbersome.

But that proved impractical; the series had already sold out for the next year.

A haunting idea, but with up to 50,000 people expected each day at the memorial, it may prove impractical.

On the other hand, in some ways they proved seriously impractical.

This proved impractical so in 1768 he had the entire house demolished.

This plan soon proved impractical, and they set May 1, 2001 as the new date.

Street's design proved impractical as each car could carry only 6 steers.

An independent opera house in an old department store building was planned 10 years ago but proved impractical.

It proved impractical to run due to its inability to make right turns.