Pronunciation: [vˈastɪtjˌuːdz] (IPA)
Correct spelling for the English word "vastitudes" is [vˈastɪtjˌuːdz], [vˈastɪtjˌuːdz], [v_ˈa_s_t_ɪ_t_j_ˌuː_d_z] (IPA phonetic alphabet).