The antonym for "cutting half" would be "joining completely". When we talk about cutting something in half, we mean to divide it into two equal parts. The opposite action would be to join those two parts together, forming a complete whole. This can be seen in various areas, such as woodworking or cooking, where joining pieces of wood or ingredients together creates a final product that is cohesive and functional. In contrast, cutting something in half can often be a destructive or separating action. Therefore, using antonyms such as "joining completely" can help shift focus towards creating and building, rather than breaking down or dividing.