The term 'It's Obvious' can be summarized by two crossword solutions: DUH (3 letters) and NOBRAINER (9 letters). Both of these terms are used to express that something is obvious or self-evident, and require no further explanation. DUH is a slang term that is often used to express disbelief or surprise at someone's lack of understanding. NOBRAINER is a more formal term that is used to describe something that is so obvious that it requires no thought or effort to understand.