futile
FYOO-tuladjMeaning useless; having no chance of success
Memory hook FUTILE = leaky: filling a bucket full of holes. Grandpa Gus keeps pouring water into a bucket full of holes, and it runs out as fast as it goes in: his effort is futile.
Trying to stay dry in that storm was futile.
In context Every attempt to fix the old radio proved futile; no matter which part they replaced, it still made nothing but static.
Similar useless, pointless, vain, hopeless
Opposite useful, effective, fruitful
From Latin futilis, “leaky,” and so “worthless.”