undetected 

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英汉解释

adj. 未被发现的；未检测到的

反义词

a.   detected

参考例句

1. MANY children and adolescents have high blood pressure that is going undetected, a study has shown.
一项研究表明，许多孩子和青少年患有高血压，但未被发现。
2. You are right that working hard is unlikely to impress him: in my experience good work always goes undetected by a boss intent on seeing your flaws.
有一点你说得对：努力工作不可能给他留下好印象：以我的经验来看，假如老板有意挑你的毛病，他就永远看不到你工作出色。
3. It is unclear how she managed to enter the home undetected. Police suspect she might have been "closet-hopping", moving from house to house. (Agencies.
目前警方还未查明她是如何潜入这名男子的家中的。警方怀疑她可能是个“柜子窜”，从这家窜到那家。

英英解释

adj.
  1. not perceived or discerned

网络释义

undetected
未被发现的; 未检测到的; 未被检出的; 不被发现;
UNDETECTED ERROR
未检出差错; 未查出的误差; 漏检错误; 未检出误差;
Remain undetected
保持隐蔽;
undetected problem
未被发现的问题;
undetected branch
未检出分支;