Utiliser "uneconomical" dans une phrase

1. This knowledge, which is highly prized by the 1d beings, is uneconomical, long-winded and ‘dead’ to him

2. “I have a small old Class Two in the yard that we stopped using because it was uneconomical since we could not afford to send it with an escort for such small loads

3. soon as they deem your services uneconomical

4. The low price had rendered production uneconomical

5. He would even risk his cakes and would deliberately desire the most fatal rubbish, the most uneconomical absurdity, simply to introduce into all this positive good sense his fatal fantastic element