The word "Indulgential" is spelled with the letter "g" even though it sounds like a "j" in pronunciation. This is because of a phonetic phenomenon known as palatalization, where the sound of the letter "g" changes to a "j" sound when it comes before a vowel sound. The IPA phonetic transcription for "Indulgential" is /ɪnˌdʌlenˈʃəl/, with the "g" representing the "j" sound and the "t" representing the sound of the letter "t" rather than "c". Always be aware of such deceptive spellings in English!