This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not tanned

adj. not converted to leather by a tanning agent

"He always kept his watch on outside; taking it off in the evenings he would show us a strip of untanned skin."

crude   

blood-clotted    thunder-lizard    well-tanned    unlined    sweat-dampened