unprotected
/ˌʌnprəˈtektɪd/adjective
1- not protected or kept safe from harm or injury无保护的; 没有防卫的; 不设防的：
a high, unprotected plateau
不设防的高原
health-care workers remained unprotected against hepatitis B infection.
医护人员对乙型肝炎感染仍处于无防护措施的状态。
1.1
- (of a dangerous machine or mechanism) not fitted with safety guards（危险的机器或设备）无安全设施的。
1.2
- (of sexual intercourse) performed without a condom（性交）未用安全套的。
1.3
- Computing (of data or a memory location) able to be accessed or used without restriction【计算机】（数据, 存储单元）未保护的, 存取（或使用）不受限制的。