An advocate of progressivism.

plural of progressivism

plural of progressivist

An advocate of social progress, ideally towards perfection / (biology) A person who holds that all life forms gradually evolve to a higher form

A person who makes progress, or facilitates progress in others.

plural of progressor

(medicine) A very rare disease of the connective tissue in which fibrous tissue (including muscle, tendon, and ligament) becomes ossified when damaged.

Of or pertaining to progression; tending to, or capable of, progress.

plural of progressist

Synonym of progressionist (“one who makes or supports progress”) / Synonym of progressionist (“one who holds that all life forms gradually evolve to a higher form”)