Uncomparable adjectives describe absolute states or conditions. Modifiers like more and less do not apply to them, and they don't have comparative and superlative forms.

What is non comparative adjective?

non-comparable adjectives

An adjective that has only one form. "Iron" is a non-comparable adjective.

What type of adjective is chewy?

having a pliable or springy texture when chewed. "I must have spent an hour gnawing on the chewy taffy."