nonproductive

/ˌnɑnprəˈdʌktɪv/
adjective
  1. Not producing or achieving anything useful or valuable; unproductive.
    • The meeting was completely nonproductive, with no decisions made.
    • Farmers struggled with nonproductive soil that wouldn't grow crops.
    • Spending hours on social media can be a nonproductive use of time.
Antonyms
What does "nonproductive" mean? | whatsthatwordmean | whatsthatwordmean