1. the quality or state of being progressive; support for or advocacy of social, political, or economic reform and innovation.
Usage: often used in political and social contexts
2. the quality of advancing or moving forward; steady improvement or development.

Examples

• The progressiveness of the new education policy was praised by many teachers.
• Her progressiveness in business practices helped the company stay competitive.
• The party's progressiveness on environmental issues attracted younger voters.
• The progressiveness of the treatment plan showed steady improvement in the patient's condition.
• Some criticized the progressiveness of the reforms as too radical.
• The organization's progressiveness in adopting technology modernized its operations.