unornamented vs unembellished

unornamented and unembellished both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unornamented	No	Yes	No	No
unembellished	No	Yes	No	No

As adjectives, unornamented and unembellished are synonyms defined as:

Other synonyms of unornamented include bare, plain, spare.

unornamented (adjective)	unembellished (adjective)
lacking embellishment or ornamentation	lacking embellishment or ornamentation