The word "obvious" is commonly used to describe something that is clearly visible, apparent, or well-known. However, there are many other synonyms that can be used instead of "obvious" to add more depth and variety to your writing. For example, you can use words like evident, manifest, palpable, conspicuous, or self-evident to convey the same meaning as "obvious". Each of these synonyms has its own unique nuance and connotation, so it's important to choose the right one based on the context and tone of your writing. Using synonyms for "obvious" can also help you avoid repetition and make your writing more engaging and interesting to read.