The term mix-up implies confusion or disorder, and some logical antonyms include organization, arrangement, and orderliness. While mix-up suggests jumbling or intermingling, these alternative terms finesse instead a systematic approach, where exhibits are arranged by theme or genre, files are orderly and easy to locate, and even speeches are delivered in a structured or well-thought-out manner. Antonyms also include clarity, coherence, and continuity, which imply the absence of confusion or irregularities. In short, where mix-up may lead to chaos, antonyms like order, structure, and clarity restore a sense of harmony and coherence to a situation.