iːˈəʊnɪən ɪˈtɝnəl ɪˈtɜːnəl ˌɛvɚˈlæstɪŋ ˌɛvəˈlɑːstɪŋ pɚˈpɛtʃuəl pəˈpɛtʃʊəl continuing forever or indefinitely the ageless themes of love and revenge eternal truths life everlasting hell's perpetual fires the unending bliss of heaven of or relating to a geological eon (longer than an era)