a.

1. 普通以下的
   Much of the areas of the country have received subnormal precipitation since the end of January.

   一月底以來，這個國家的多數地區雨水都比以往少。

2. 低能的
   This school is for subnormal children.

   這所學校是為低能兒童開的。

n.

1. 不及常人者；弱智者
   Special activities were designed in the hospital to meet the needs of subnormals.

   醫院為滿足弱智者的需要而設計了特殊的活動。

adj.