1. ADJ Something that is downy is filled or covered with small soft feathers. 填滿絨羽的; 絨羽覆蓋的[usu ADJ n]

...the warm downy quilt. ...這暖和的羽絨被。

2. ADJ Something that is downy is covered with very fine hairs. 布滿絨毛的

...leaves that are often downy underneath. ...底部常常布滿絨毛的的樹葉。