productive

https://tts.langeek.co/read?text=cHJvZHVjdGl2ZQ&hash=c39b081f8cdc1bf120509c5a4bc2759cd4c16118&lang=en&cache-only=0&driver=googletts&accent=US

These adjectives express the degree to which something fulfills its intended purpose, optimizes resources, or achieves desired outcomes.