Boo booed, meaning to make an error or mistake, has several antonyms, including perfect, accurate, correct, precise, and flawless. These words imply a correctness in actions, words or deeds. Other antonyms for boo booed include seamless, unimpaired, unspoiled and blemish-free. These words denote an absence of defect, flaw or imperfections. As antonyms, they communicate a state of being without errors or mistakes, and the importance of getting things right. So, when you want to express achievement, use these antonyms and communicate a sense of excellence.