Pronunciation: [ˈɛfətləsɪz] (IPA)
Correct spelling for the English word "effortlesses" is [ˈɛfətləsɪz], [ˈɛfətləsɪz], [ˈɛ_f_ə_t_l_ə_s_ɪ_z] (IPA phonetic alphabet).
Correct spelling for effortlesses