41 synonyms for catalyst such as activist, accelerator, and activator. Catalyst is a noun, and its antonyms are inhibitor and deterrent.
Accelerator, Activator, Activist, Agent, Booster, Catalyst agent, Change agent, Crusader, Disruptor, Driver, Encourager, Enhancer, Enzyme, Evolver, Exacerbator, Facilitator, Firestarter, Force, Generator, Impetus, Incitement, Incubator, Influence, Innovator, Leader, Mobilizer, Motivator, Precipitant, Promoter, Proponent, Provocation, Pusher, Quickener, Reformist, Spark, Spur, Stimulus, Transformer, Trigger, and Urge.