What is the primary way a Relative Adjective expresses a characteristic, distinguishing it from a Qualitative Adjective?

Question

What is the primary way a  Relative Adjective  expresses a characteristic, distinguishing it from a Qualitative Adjective?

Answer

It expresses a characteristic bound with the relation to some other object or phenomenon.

Answer

It expresses a characteristic feature or quality directly.

Answer

It is always changed according to gender, number, and case.

Answer

It describes a quality using a zero morpheme.

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