The quality or state of being progressive, especially in terms of social, political, or economic reform. The progressiveness of the new policy was evident in its focus on renewable energy and social equity.
A tendency to favor or advocate for change, improvement, or reform, particularly in a political or social context. Her progressiveness was reflected in her support for universal healthcare and education reform.
The extent to which a tax, tariff, or rate schedule increases as the amount subject to it rises; the progressive character of a fiscal measure. Economists debated the progressiveness of the new income-tax brackets.