爆ばく発はつ性せいMeaningsNoun1. explosiveness; explosivity; explosibilityKanji used爆explosion発let out性nature (of a person)Composed of爆ばく発はつexplosion; detonation; blast; blowing up; eruption; outburst (of emotion); explosion (e.g. of anger); eruption (e.g. of discontent)Noun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun