Slipup is a word that is often used when describing a mistake or an error. However, there are a variety of synonyms that can be used to convey the same meaning. For instance, blunder, faux pas, gaffe, mistake, mishap, oversight, and lapse are all suitable replacements for slipup. While each of these words may have a slightly different connotation, they are all effective in expressing the idea of making an unintended error. Whether you are writing an essay, an email, or a report, using synonyms can help to add variety and interest to your writing, making it more engaging and effective.