相そう反はん性せいConjugationsMeaningsNa-adjective1. reciprocalKanji used相towards each other反be against性nature (of a person)Composed of相そう反はんmutual opposition; contrariety; contradiction; repulsionNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun