fruitless

/F R UW1 T L AH0 S/
adjective
  1. 1

    Bearing no fruit; barren.

  2. 2

    Unproductive, useless.

    โ€œThe unskilled manโ€™s attempt at fixing his car engine was fruitless.โ€

  3. 3

    Of a person: unable to have children; barren, infertile.

    โ€œThe fruitless woman desperately wanted to have children.โ€

  4. 4

    Of a diet, etc.: without fruit.

Source: https://en.wiktionary.org/wiki/fruitless