stagnant
adj
1 (of water) not flowing and therefore dirty and smelling unpleasant; still and stale (指水)因不流動而污濁、 腐臭的, 靜止而不新鮮的
water lying stagnant in ponds and ditches 池塘和溝中的死水.
2 (fig 比喻) showing no activity (and therefore not developing or progressing); sluggish 停滯的; 不景氣的
Business was stagnant last month. 上個月生意蕭條.