countercurrent
     n 1: a stretch of turbulent water in a river or the sea caused by
          one current flowing into or across another current [syn:
           {rip}, {riptide}, {tide rip}, {crosscurrent}]
     2: actions counter to the main group activity; "political
        crosscurrents disrupted the conference" [syn: {crosscurrent}]
Source: WordNet® 2.0