The spelling of the word "more unconcluded" can be confusing, as it contains the uncommon combination of three vowels in a row. However, using IPA phonetic transcription can help clarify the pronunciation and spelling. The first syllable, "more," is pronounced /mɔːr/. The second syllable, "un," is pronounced /ʌn/. The final two syllables, "concluded," are pronounced /kənˈkluːdɪd/. Therefore, the correct spelling of this word is "more unconcluded," with no additional letters between the "e" and "u" in "unconcluded."