journeyman vs skilled workman

journeyman and skilled workman both are nouns.

Word	Noun	Adjective	Verb	Adverb
journeyman	Yes	No	No	No
skilled workman	Yes	No	No	No

As nouns, skilled workman is a hypernym of journeyman; that is, skilled workman is a word with a broader meaning than journeyman:

Other hypernyms of journeyman include skilled worker, trained worker.

journeyman (noun)	skilled workman (noun)
a skilled worker who practices some trade or handicraft	a worker who has acquired special skills