不ふ死し性せいふしせいじ字FuriganaAudioMeanings1nounimmortalityRefers to the state or quality of being immortal, often used in philosophical, mythological, or biological contexts.不ふ死し性せいを求もとめることは、多おおくの神しん話わのテーマだ。Break this sentence down in the analyzerThe pursuit of immortality is a theme in many myths.ある種しゅのクラゲは生せい物ぶつ学がく的てきな不ふ死し性せいを持もつと言いわれている。Break this sentence down in the analyzerSome jellyfish are said to possess biological immortality.