The word "irrevealably" is spelled based on its pronunciation. In IPA phonetic transcription, it is spelled as /ɪrɪvɪˈlābli/. The first syllable "ir" is pronounced as "ee-r," the second syllable "re" is pronounced as "ri," the third syllable "veal" is pronounced as "vēl," and the last syllable "ably" is pronounced as "ā-blee." This word is not commonly used in English, but it means unable to be revealed.