Fruitless (adjective) — عديم الثمار: Producing no useful result. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Incapable of producing any useful result; pointless.
Too proud of one's looks or achievements; also useless or unsuccessful.
Serving no purpose.
Having no purpose or use.
Infertile or unproductive; lacking vegetation; empty or devoid; unable to bear fruit; stark and lifeless
Not achieving the desired result.
unproductiveunavailing