burnability vs combustibleness

burnability and combustibleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
burnability	Yes	No	No	No
combustibleness	Yes	No	No	No

As nouns, burnability and combustibleness are synonyms defined as:

burnability and combustibleness: the quality of being capable of igniting and burning

Other synonyms of burnability include combustibility.

burnability (noun)	combustibleness (noun)
the quality of being capable of igniting and burning	the quality of being capable of igniting and burning