in the direction against a stream's current
upstream (adj.)
toward the source or against the current
[ Syn: upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver , upriver ]