workmanship vs attainment

workmanship and attainment both are nouns.

Word	Noun	Adjective	Verb	Adverb
workmanship	Yes	No	No	No
attainment	Yes	No	No	No

As nouns, attainment is a hypernym of workmanship; that is, attainment is a word with a broader meaning than workmanship:

Other hypernyms of workmanship include accomplishment, acquirement, acquisition, skill.

workmanship (noun)	attainment (noun)
skill in an occupation or trade	the act of achieving an aim
	arrival at a new stage
	an ability that has been acquired by training