Futile means having no effect, incapable of producing any useful or desired result. It describes an action that is pointless and fruitless, resulting in nothing positive or productive.
Usage examples
The scientist's attempts to find a cure for the incurable disease proved futile.
After hours of trying to fix the broken computer, John's efforts were deemed futile as the device still wouldn't turn on.
The police officer's futile attempt to catch the skilled thief left him feeling frustrated and defeated.
Despite her best efforts, Karen's attempts to persuade her boss to give her a raise were futile.
The hiker's futile attempts to find a phone signal in the remote mountains resulted in her being stranded for days.
Well I see this is just another gimmick in futile attempt to control the lending rates of bank and complicate things for all. (relakhs.com)
Rather than doubling down on such futile efforts, education reformers should seek to expand true accountability by increasing school choice for more families. (educationnext.org)
It may be quite entertaining to watch a small puppy set off in futile pursuit of the family cat. (thehappypuppysite.com)