自し然ぜん発はっ生せいMeaningsNounNo-adjective1. spontaneous generation; abiogenesis2. natural occurrence; spontaneous occurrenceKanji used自self然sort of thing発let out生lifePitch accentしぜんはっせいComposed of自し然ぜんnature; natural; spontaneous; automatic; naturally; spontaneously; automaticallyNoun発はっ生せいoccurrence; incidence; outbreak; birth (e.g. of civilization); generation (of power, heat, etc.); production; ontogeny; development; growth; breedingNounExamples1干ほし草くさに自し然ぜん発はっ生せい的てきに火ひがついた。A spontaneous fire started in the hay.