When it comes to describing something in great detail, the phrase "only in details" might seem like the perfect way to convey that message. However, there are actually several other synonyms you can use to express this concept more effectively. For example, you could say "in-depth," "meticulous," or "thorough" to emphasize the level of detail you're discussing. Alternatively, you might opt for "granular," "intricate," or "nuanced" to convey a sense of complexity or intricacy. Ultimately, the key is to choose a synonym that accurately reflects the level of detail you're discussing while also conveying a sense of precision and thoroughness.