Meaning of “progressive” - Learner’s Dictionary

progressive

adjective uk us /prəʊˈɡresɪv/
MODERN

B2 thinking or behaving in a new or modern way:

progressive ideas/attitudes
GRADUAL

developing or happening gradually:

a progressive disease
progressively adverb

gradually:

My headaches are getting progressively worse.

(Definition of “progressive adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)