unfruitful

adjective

1. not providing satisfaction; unprofitable: unfruitful efforts.
2. not producing offspring; sterile: an unfruitful marriage.
3. not yielding good crops; infertile: unfruitful acres.
4. not bearing fruit; fruitless; barren: an unfruitful tree.

adjective

1. barren, unproductive, or unprofitable
2. failing to produce or develop into fruit

adj.late 14c., “barren,” from un- (1) “not” + fruitful. Originally literal; figurative sense is attested from c.1400. Related: Unfruitfully; unfruitfulness.