/
ˈtəːbjʊl(ə)nt/
adj.
  - disorderly or confused; not calm or stable.
 - technical relating to or denoting irregular and disordered flow of fluids.
 
Derivative
- turbulence n.
  - turbulently adv.
 
Etymology
ME: from L. turbulentus ‘full of commotion’, from turba ‘crowd’.