The word "un fitnesses" is an uncommon spelling of the word "unfitnesses." The IPA phonetic transcription for "unfitnesses" is /ʌnˈfɪtnəsɪz/. The prefix "un-" means "not," and "fitnesses" is the plural form of "fitness." The double "s" is added to indicate the plural form. This word may be used to describe the state of being unfit or not physically capable. However, it is recommended to use the more common spelling of "unfitnesses."