impervious
adj
~ (to sth)
1 not allowing water, gas, etc to pass through 不容液体、 气体等透过的; 不能渗透的
This material is impervious to rain-water. 这种材料防雨.
2 not affected or influenced by sth 不受某事物影响的; 无动於衷的
impervious to criticism, argument, fear 对批评我行我素的、 对争论不闻不问的、 将恐惧置之度外的.