tanned vs suntanned

tanned and suntanned both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tanned	No	Yes	No	No
suntanned	No	Yes	No	No

As adjectives, tanned and suntanned are synonyms defined as:

tanned and suntanned: (of skin) having a tan color from exposure to the sun

Other synonyms of tanned include bronzed.

tanned (adjective)	suntanned (adjective)
converted to leather by a tanning agent	(of skin) having a tan color from exposure to the sun
(of skin) having a tan color from exposure to the sun