不ふ燃ねん性せいMeaningsNounNo-adjective1. non-inflammability; incombustibilityKanji used不negative燃burn性nature (of a person)Pitch accentふねんせいComposed of不ふ燃ねんincombustibilityNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun