adj.未经证实的，未被证明的

The claim that the product can cure cancer remains unsubstantiated.
这种产品能治愈癌症的说法仍然没有证据支持。
Despite numerous allegations, there is still no hard evidence to substantiate his corruption.
尽管有很多指控，但至今仍无确凿证据证实他的腐败。
The witness's testimony was deemed unsubstantiated due to lack of supporting facts.
由于缺乏支持性事实，证人的证词被认为是不可靠的。
Her theory about ancient civilizations is largely unsubstantiated and speculative.
她关于古代文明的理论大部分未经证实且充满猜测。
The rumor of an imminent merger between the two companies remains unsubstantiated.
两家公司即将合并的谣言目前尚未得到证实。
The politician's claims about reducing unemployment have been largely unsubstantiated by data.
该政治家关于降低失业率的承诺在数据上大都未得到证实。
The eyewitness account of the accident was later found to be unsubstantiated.
事故的目击者后来被发现其描述并无确凿证据支持。
The celebrity's accusations against her ex-partner remain unsubstantiated, leading to a heated public debate.
名人对其前伴侣的指控至今未得到证实，引发了激烈的公众讨论。
The company denied the allegations of labor exploitation, stating they were completely unsubstantiated.
公司否认了剥削劳工的指控，称这些指控完全没有根据。
Despite widespread belief, the health benefits of drinking red wine are still somewhat unsubstantiated.
尽管普遍认为喝红葡萄酒有益健康，但这一说法在一定程度上仍未得到充分证实。