carried slowly by a current of air or water

a drifting ocean liner

behind them rose the broken highlands crowned with drifting clouds

(especially of snow or leaves) blown into heaps by the wind

long stretches of drifting snow

be carried slowly by a current of air or water

the cabin cruiser started to drift downstream

excited voices drifted down the hall

(especially of snow or leaves) be blown into heaps by the wind

fallen leaves were starting to drift in the gutters