The word bifurcation refers to the division or splitting of something into two parts, which means that the antonyms for the word bifurcation would be words that signify joining or merging. Some of the antonyms for bifurcations could be convergence, continuity, connection, unity, coalescence, fusion, and integration. These words convey the opposite of splitting or dividing, and instead, highlight the cohesion and unification of things. For example, the fusion of two rivers is an excellent representation of an antonym for bifurcation. Instead of splitting, the rivers merge to become one. Similarly, the antonyms for bifurcations suggest a sense of oneness and completeness rather than division and separation.