unadorned vs undecorated

unadorned and undecorated both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unadorned	No	Yes	No	No
undecorated	No	Yes	No	No

As adjectives, unadorned and undecorated are synonyms defined as:

unadorned and undecorated: not decorated with something to increase its beauty or distinction

unadorned (adjective)	undecorated (adjective)
not decorated with something to increase its beauty or distinction	not decorated with something to increase its beauty or distinction