Additively refers to a process of adding different elements or factors together to yield an overall result. Some synonyms for the word additively include cumulatively, aggregatively, incrementally, progressively, serially, gradually, sequentially, and uniformly. These words highlight different aspects of the process of adding, whether it be in a linear or progressive manner, with equal intensity or over time. For instance, when used in a mathematical context, cumulatively and aggregatively emphasize the accumulation of numbers or variables. On the other hand, incrementally and sequentially highlight a step-by-step approach. In writing and communication, synonyms like progressively and gradually help readers understand an author's intent in building or expanding an argument.