nonturbulent

/ˌnɑnˈtɜrbjələnt/
adjective
  1. Not characterized by turbulence; calm, smooth, or steady.
    • The flight was nonturbulent, so passengers could walk around the cabin safely.
    • The scientist studied nonturbulent airflow in the wind tunnel.
    • They enjoyed a nonturbulent stretch of river perfect for kayaking beginners.
Antonyms
What does "nonturbulent" mean? | whatsthatwordmean | whatsthatwordmean