futile

adjective2

1. •
   Incapable of producing results, useless; doomed not to be successful; not worth attempting.

   • He seemed hitherto to have been living by proxy, in a vision, in reflection—to have been an echo, a shadow, a futile attempt;[…] — 1879
2. •
   Insignificant; frivolous.

   • Of its history little is recorded, and that little futile. — 1853