unproductive
adjectiveNot productive; idle.
adjectiveAdding nothing to exchangeable value.
Not productive; barren; more especially, not producing large crops; not making profitable returns for labor: as, unproductive land; in political economics, not increasing the quantity or exchangeable value of articles of consumption: as, unproductive labor.
Not producing some specified effect or result: with of: as, acts unproductive of good.
adjectiveNot
not producing or capable of producing
adjectivenot producing desired results