The correct spelling of the word "anxiousness" is often confused as "anhisitous". The word "anxiousness" is pronounced as /æŋkʃəsnəs/ in IPA phonetic transcription. The pronunciation of the word starts with the short 'a' vowel sound followed by the 'ng' consonant sound. The 'ksh' sound represents the 'x' in the word, and the final syllable is pronounced with the 's' sound. To avoid confusion, it is essential to use the correct spelling and pronunciation of words to communicate effectively.