そうせいき 創成期 LinksSentence search for 創成期Sentence search for そうせいきSentence search for 創生期Sentence search for 創世期Kanji details for 創, 成 and 期Edit in JMdict Noun1. initial stage; early period; early days; early yearsOther forms創生期 【そうせいき】、創世期 【そうせいき】Notes創世期: Irregular kanji usage. Discussions Log in to talk about this word.