unmetrical
un met ri cal |ˌənˈmetrikəl ənˈmɛtrəkəl | ▶adjective not composed in or using meter: an unmetrical poet.
un |met ¦ric ¦al |ʌnˈmɛtrɪk (ə )l | ▶adjective not composed in or using metre: an unmetrical poet.