Synonyms for Unifying (same or very similar meaning)
WordNet sense 1 (combining into a single unit):
consolidativeWordNet sense 2 (combining and coordinating diverse elements into a whole):
integrativeWordNet sense 3 (tending to unify):
centripetalWordNet sense 4 (tending to draw to a central point):
centralising, centralizingFrom the ODE community, based on WordNetadd/edit