Fruitless
Fruitless is an adjective describing something that yields no fruit or has no productive result. In ordinary use, it can refer to plants that do not bear fruit as well as to efforts, plans, or endeavors that fail to achieve their intended outcome. The term often carries a negative connotation, emphasizing lack of success rather than mere chance.
Etymology and usage notes suggest that fruitless is formed from fruit plus the suffix -less, indicating absence.
In botany and horticulture, fruitless describes flowers, branches, or varieties that do not develop edible fruit.
In figurative language, fruitless describes actions or investigations that fail to yield an outcome or solution.
See also: fruitlessness, barren, infertile, unproductive, futile.