Pronunciation: [pɹɪmət͡ʃˈʊ͡əɹəst] (IPA)
Correct spelling for the English word "prematurest" is [pɹɪmət͡ʃˈʊ͡əɹəst], [pɹɪmətʃˈʊəɹəst], [p_ɹ_ɪ_m_ə_tʃ_ˈʊə_ɹ_ə_s_t] (IPA phonetic alphabet).
Correct spelling for prematurest