The word "unsuffering" is spelled with a unique combination of letters. The 'un' prefix means "not," while the root word 'suffering' has a long 'u' sound, spelled with the letter 'u.' However, the suffix '-ing' changes the pronunciation of the 'u' to a short 'uh' sound, spelled with the letter 'e.' So, the correct pronunciation is /ʌnˈsʌf.ərɪŋ/, with emphasis on the first syllable. Despite its unusual spelling, this word efficiently conveys its meaning of "not experiencing pain or distress."