The phrase "came apart" implies that something has become disassembled, disconnected or fragmented. The antonyms for this phrase would be "came together," "united," "bonded," "integrated," and "assembled." These antonyms evoke the sense of coming together, forming interlocking pieces or a unified whole. Antonyms of "came apart" projects the image of materials being bound, forming a more substantial or complete entity. The opposite of something that has come apart describes something that is whole, secure, and connected. If you are struggling with something in your life that has "come apart," consider using these antonyms as inspirations to help you bring it back together.