The word "apprehensivenesses" is a tongue twister! It is spelled "æprɪhɛnsɪvnɪsɪz" and consists of multiple suffixes added to the root word "apprehensive." The suffix "-ness" is added to make it a noun, and the additional "-es" suffix indicates plural form. The word means the state of feeling anxious or fearful about something. It's not a word that is commonly used, but it shows the complexity of English spelling and the importance of knowing word roots and suffixes to decipher unfamiliar words.