Pronunciation: [ˌanɪvˈɜːsə͡l] (IPA)
Correct spelling for the English word "anniversal" is [ˌanɪvˈɜːsə͡l], [ˌanɪvˈɜːsəl], [ˌa_n_ɪ_v_ˈɜː_s_əl] (IPA phonetic alphabet).
Correct spelling for anniversal