When it comes to describing things that are clear and obvious, "light as day" is a common phrase many people use. However, there are many synonyms that can convey the same meaning, such as "crystal clear," "as plain as the nose on your face," "transparent," "unmistakable," "blatant," or "evident." These phrases all imply that something is easily seen and understood, without any confusion or doubt. Using synonyms for "light as day" can add variety to your writing and make it more interesting to read. So if you're looking for alternative ways to describe something that is clear and obvious, try some of these synonyms to spice up your prose.