The spelling of the word "most imposturous" may appear somewhat confusing at first glance. However, when using IPA (International Phonetic Alphabet) to break down the pronunciation, it becomes clearer. The first syllable "moʊst" is pronounced with a long "o" sound like in "boat". The second syllable "ɪmˈpɒstjʊrəs" includes a schwa sound followed by the stressed syllable ending with an "us" sound. This word means "most fraudulent" or "most deceitful". It is important to ensure correct spelling to avoid any confusion or misunderstandings in written communication.