skilled workman vs skilled worker

skilled workman and skilled worker both are nouns.

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

As nouns, skilled workman and skilled worker are synonyms defined as:

skilled workman and skilled worker: a worker who has acquired special skills

Other synonyms of skilled workman include trained worker.

skilled workman (noun)	skilled worker (noun)
a worker who has acquired special skills	a worker who has acquired special skills