Catalytically is an adverb that typically describes the action or effect of a catalyst. There are many synonyms for this word that can be used in place of it when writing a piece of text. Some of the most common synonyms for catalytically include: initiating, activating, stimulating, spurring, accelerating, promoting, invigorating, encouraging, propelling, and triggering. Each of these synonyms has a similar meaning to catalytically and can be used to add variety to a piece of writing. Depending on the context in which this word is being used, one of these synonyms may be a better fit over the others.