downward
/ˈdaunwəd; `daʊnwɚd/ adj[usu attrib 通常 作定语]
moving, leading or pointing to what is lower or less important 向下的; 下降的; 降低的
a downward movement, slope 下行、 下坡
a downward trend in prices 价格下降的趋势
(fig 比喻) on the downward path, ie getting worse 走下坡路（日益恶化）.