The word "antispadix" is not a commonly used term in English, and its spelling can be confusing. However, knowing its phonetic transcription can help to understand how to spell it correctly. The IPA transcription of "antispadix" is /æntiːˈspædɪks/, which indicates the correct sequence of sounds that make up the word. The "anti-" prefix denotes opposition, followed by "-spad," which is an unfamiliar root, and ending in "-ix," a common suffix used to form nouns. Therefore, with the help of its phonetic transcription, we can spell "antispadix" accurately.