Futile (adjective) = having no result or effect : pointless or | O

Futile (adjective) = having no result or effect : pointless or useless

• All our efforts proved futile.
• They made a futile [=vain] attempt to control the flooding.
• Their attempts were impressive but ultimately futile.
• an utterly futile struggle for justice
• She made one last futile effort to unlock the door.
• She wrapped her arms around her in a futile attempt to keep warm.