1ADJ [ADJ n, verb-link ADJ, ADJ after verb](人或地方)未受保護的,未設防的 An unprotected person or place is not looked after or defended, and so they may be harmed or attacked. (人或地方)未受保護的,未設防的
2ADJ [ADJ n, verb-link ADJ, ADJ after verb]暴露在外的;易受損的 If something is unprotected, it is not covered or treated with anything, and so it may easily be damaged. 暴露在外的;易受損的
Exposure of unprotected skin to the sun carries the risk of developing skin cancer.
皮膚沒有采取任何防曬措施就在太陽下曝曬的話有得皮膚癌的危險。
This leaves fertile soil unprotected and prone to erosion.