subnormal
adj
1 below normal; less than normal 低於正常的; 比正常少的
subnormal temperatures 低於正常的温度.
2 below the normal level of intelligence 智力低於正常标准的
a subnormal child 弱智儿童
educationally subnormal 在教育方面认为智力低於正常标准的. subnormal, n (infml 口) subnormal(2) person 智力逊常者; 弱智者.