Top matchCommonJLPT N1いせい異性iseiNoun, Noun which may take the genitive case particle 'no'the opposite sexsee 同性彼女は異性の前では非常に恥ずかしがる。She feels very shy in the presence of the opposite sex.isomerismChemistryCopy Listen Pitch on OJAD Explore
異性愛いせいあいiseiaiNoun, Noun which may take the genitive case particle 'no'heterosexuality; heterosexual love