How Do You Spell OVERNEGLECTFULNESS?
Pronunciation: [ˌə͡ʊvənɪɡlˈɛktfə͡lnəs] (IPA) 
Unsurprisingly, "overneglectfulness" isn't a commonly used word. This 19-letter monster is made up of "over," meaning "excessive," "neglect," meaning "to ignore or disregard," and "fulness," meaning "the state of being full." IPA phonetic transcription would show the pronunciation as ˌəʊvəˌnɛɡlɛktfʊlnəs. However, due to its length and its being coined by someone with a penchant for long words, it's not a word you'll hear used in everyday conversation.
