subnormal
adj
1 below normal; less than normal 低於正常的; 比正常少的
subnormal temperatures 低於正常的溫度.
2 below the normal level of intelligence 智力低於正常標準的
a subnormal child 弱智兒童
educationally subnormal 在教育方面認為智力低於正常標準的. subnormal, n (infml 口) subnormal(2) person 智力遜常者; 弱智者.