The word "most exhilaratory" may seem confusing in terms of spelling, but it can be easily pronounced using the International Phonetic Alphabet (IPA) transcription. The IPA transcription for this word would be /məʊst ɪɡˈzɪlərət(ə)ri/. The spelling of this word follows the common pattern of adding the suffix "-ory" to the adjective "exhilarating" to form the noun "exhilaratory". The addition of the prefix "most" simply intensifies the meaning of the word, resulting in "most exhilaratory".