undetermined
adj. 待定的；未确定的；缺乏决断力的；未解决的
同义词
反义词
参考例子
1.The other 27 cases remained undetermined due to insufficient data.
另外27例因资料不足而无法确定传播方式。
2.For an undetermined period of time I felt myself cut off from the world, as an abstract spectator.
有一段时间，我恍惚地感到自己从世界中分离了出来，成为一个抽象的旁观者。
英文解释
adj.
1.not yet having been ascertained or determined
2.not precisely determined or established; not fixed or known in advance
3.not brought to a conclusion; subject to further thought
网络释义
undetermined
未定的; 未确定的; 不确定; 待定的;
Undetermined coefficients
未定系数; 未定系数法;
undetermined etiology
释义：未确定的病因学;
undetermined eoefficient
未定系数; 待定系数;
undetermined origin
释义：未明来源,原因未定;