Alternative form of progressible

Favouring or promoting progress; advanced. / Gradually advancing in extent; increasing. / Promoting or favoring progress towards improved conditions or new policies, ideas, or methods.

A person who actively favors or strives for progress towards improved conditions, as in society or government.

Belonging to or supporting a Progressive Party. / Of or pertaining to such a party, its policies, or its membership.

A member or supporter of a Progressive Party.

The act of moving from one thing to another. / The act of moving forward or proceeding in a course; motion onward. / (mathematics) A sequence obtained by adding or multiplying each term by a constant.

Movement or advancement through a series of events, or points in time; development through time. / Specifically, advancement to a higher or more developed state; development, growth.

(intransitive) To move, go, or proceed forward; to advance. / (intransitive) To develop. / (by extension) To improve; to become better or more complete. / (transitive) To expedite.

simple past tense and past participle of progress

In a progressive manner. / As part of a progression.