undertow

noun
1
a current in the sea or ocean that moves in the opposite direction to the water near the surface
جریان زیر آب, پادجریان, جریان برگشتی, جریان معکوس
2
a feeling or quality that influences people in a particular situation even though they may not really be aware of it
تاثیر نهان, احساس پنهانی, نفوذ ناآشکار, احساس نهفته