Finding the perfect synonym for "clean line" can be tricky, as it is a term that has multiple meanings depending on the context. For instance, it can refer to a minimalist design element in architecture, a straight boundary line in a property deed, or a flawless, blemish-free finish in cosmetic products.
Some synonyms for "clean line" can include "sleek," "crisp," "precise," "sharp," "neat," "tidy," "uncluttered," "streamlined," and "smooth." Other possible options include "simple," "modern," "minimal," "refined," "elegant," and "polished." Ultimately, the synonym you choose will depend on the specific context and the intended meaning behind the phrase "clean line".