adj (1)能防御(抵抗住)的 (providing protection against sth; that can resist sth)[A (against)][作attrib]：～against being taken by surprise 不受惊吓的;(material) be～against water (材料)可以防水;The glass seems to be～against bullets. 这种玻璃好像可以防弹。～against temptation 能抵抗诱惑的; be～against the greatest pain 能忍受极度疼痛;

(2)能防(耐)……的 (able to keep out or stop sth) (常用于合成词)： a water～watch/coat 防水手表/外衣;leak-～batteries 防漏电池;a bullet-～car 防弹汽车;a sound-～room 隔音房间;a bomb～shelter 避弹洞;The floor should be acid-～. 地板应能耐酸。

vt使能防(耐) (尤指使布防水) (make sth proof (esp make a fabric waterproof)) [T+n]