Incremental
Part of speech: adjective
Definition: Pertaining to an increment.
Example sentence: The presidential candidates are offering prescriptions for everything from Iraq to healthcare, but listen closely. Their fixes are situational and incremental. Meanwhile, the underlying structural problems in American politics and government are systemic and prevent us from solving our most intractable challenges.
Additive
Part of speech: noun
Definition: A substance added to another substance or product for its ability to alter the results.
Part of speech: adjective
Definition: Proper to be added; positive; -- opposed to subtractive.Of or pertaining to addition.