churning

Adjective

• (of a liquid) agitated vigorously; in a state of turbulence
  • the river's roiling current
    
  • turbulent rapids
    

• moving with or producing or produced by vigorous agitation
  • winds whipped the piled leaves into churning masses
    
  • a car stuck in the churned-up mud
    

Related words

• Synonyms: 
  roiling , roiled , roily , turbulent , churned-up