Well-executed is a phrase often used to describe something that has been completed successfully or accomplished with great skill. Luckily, the English language is filled with synonyms that can be used in this context. Words like flawless, meticulous, precise, impeccable, and expertly executed can all be used to convey the same meaning. Other possible synonyms include proficient, polished, faultless, efficient, and masterful. When looking to describe something that has been done well, it's important to choose the correct word to accurately capture the level of skill and expertise involved.