耐たい火か性せいMeaningsNoun1. fire resistanceKanji used耐withstand火fire性nature (of a person)Pitch accentたいかせいComposed of耐たい火かfireproofNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun