progressive - noun

a tense of verbs used in describing action that is on-going

a person who favors a political philosophy of progress and reform and the protection of civil liberties

progressive - adjective

• favoring or promoting progress
• (of taxes) adjusted so that the rate increases as the amount of income increases
• favoring or promoting reform (often by government action)
• gradually advancing in extent
• (of a card game or a dance) involving a series of sections for which the participants successively change place or relative position
• advancing in severity

progressive - thesaurus

imperfect   liberal   liberalist   reformist