ready-made vs artefact

ready-made and artefact both are nouns.

Word	Noun	Adjective	Verb	Adverb
ready-made	Yes	Yes	No	No
artefact	Yes	No	No	No

As nouns, artefact is a hypernym of ready-made; that is, artefact is a word with a broader meaning than ready-made:

ready-made: a manufactured artifact (as a garment or piece of furniture) that is made in advance and available for purchase
artefact: a man-made object taken as a whole

Other hypernyms of ready-made include artifact.

ready-made (noun)	artefact (noun)
a manufactured artifact (as a garment or piece of furniture) that is made in advance and available for purchase	a man-made object taken as a whole

ready-made (adjective)	artefact (adjective)
made for purchase and immediate use
commercially produced; not homemade
repeated regularly without thought or originality