The Collaborative International Dictionary of English v.0.48:

crosscurrent \crosscurrent\ n.
   1. a stretch of turbulent water in the sea.

   Syn: rip, riptide, tide rip.
        [WordNet 1.5]

   2. a tendency or sentiment within a group which conflicts
      with that of the majority; -- often used in the plural.
      [PJC]

WordNet (r) 3.0 (2006):

crosscurrent
    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,
         countercurrent]
    2: actions counter to the main group activity; "political
       crosscurrents disrupted the conference" [syn:
       countercurrent, crosscurrent]

Moby Thesaurus II by Grady Ward, 1.0:

90 Moby Thesaurus words for "crosscurrent":
   affluence, afflux, affluxion, air current, bucking, challenge,
   concourse, confluence, conflux, contention, contradiction,
   contraposition, contravention, contraversion, counteraction,
   counterbalance, counterblast, countercurrent, counterforce,
   counterinfluence, counterpoise, counterpressure, counterweight,
   counterworking, course, crossing, current, current of air,
   defluxion, denial, downdraft, downflow, downpour, draft, drift,
   driftage, fall wind, flow, flow of air, flowing, fluency, flux,
   following wind, foul wind, gush, head wind, impugnation,
   impugnment, indraft, inflow, inhalation, inrush, inspiration,
   jetstream, katabatic wind, mill run, millrace, monsoon,
   movement of air, negation, onrush, onward course, opposing,
   opposition, opposure, oppugnation, outflow, race, rebutment,
   rebuttal, refusal, rejection, resistance, run, rush, set, spate,
   standing against, stream, stream of air, surge, tail wind, tide,
   traversal, trend, undercurrent, undertow, updraft, water flow,
   wind