behemothic

As adjectives the difference between diminutive and behemothic

is that diminutive is very small while behemothic is colossal, of enormous size and power.

As a noun diminutive

is (grammar) a word form expressing smallness, youth, unimportance, or endearment.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective behemothic is

colossal, of enormous size and power.