Subnormal and Smaller

Subnormal adjective - Of a size that is less than average.

Smaller and subnormal are semantically related. in lesser topic. In some cases you can use "Smaller" instead an adjective "Subnormal".

Smaller adjective - Having not so great importance or rank as another.

Subnormal and smaller are semantically related. Sometimes you can use "Subnormal" instead an adjective "Smaller".