Using 'subnormal' to describe a person might seem insensitive or offensive. Be careful when saying someone has 'subnormal intelligence,' as it can be hurtful.
Pro Tip 2/3
Relative Measure
'Subnormal' is comparative and suggests a standard to measure against. Because her growth was 'subnormal,' she was the smallest in her class.
Pro Tip 3/3
Not Always Negative
Though often negative, 'subnormal' can be neutral, depending on context. He enjoys the 'subnormal noise' levels in his isolated cabin.