Cutting in two refers to a process of dividing something into two parts. The antonyms for cutting in two would be 'stitching together' or 'joining.' These words indicate the process of bringing two parts together to form a whole. Another antonym for cutting in two is 'uniting,' which refers to the act of joining two parts or groups to form a single entity. Synonyms for this word include 'merging,' 'combining,' and 'connecting.' These antonyms are useful in situations where separation needs to be avoided, and a cohesive whole needs to be maintained. Therefore, antonyms for cutting in two serve as invaluable tools for expressing unity and completeness.