fire-resistive vs fire-retardant

fire-resistive and fire-retardant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fire-resistive	No	Yes	No	No
fire-retardant	No	Yes	No	No

As adjectives, fire-resistive and fire-retardant are synonyms defined as:

Other synonyms of fire-resistive include fire-resistant, fire-resisting.

fire-resistive (adjective)	fire-retardant (adjective)
difficult to burn	difficult to burn