easy going vs progression

easy going and progression both are nouns.

Word	Noun	Adjective	Verb	Adverb
easy going	Yes	No	No	No
progression	Yes	No	No	No

As nouns, progression is a hypernym of easy going; that is, progression is a word with a broader meaning than easy going:

Other hypernyms of easy going include advance, advancement, forward motion, onward motion, procession, progress.

easy going (noun)	progression (noun)
easy unobstructed progress	the act of moving forward (as toward a goal)
	a movement forward
	a series with a definite pattern of advance