1. 無確實根據的,未經證實的：Advocates 提倡者,贊成者︰proponents | Unsubstantiated 無確實根據的,未經證實的︰unverified | Maintain 維持︰preserve
2. 未经证实的：unsophisticated 天真的;不懂世故的 | unsubstantiated 未经证实的 | untapped 未开发的
3. 无确实根据[证据]的：unsubstantiated无确实根据[证据]的 | extralegal未经法律许可的或批准的 | wholesome food有益健康的食物
4. 未被证实的：jaded 腻烦的 | unsubstantiated 未被证实的 | diversification 多样化
1. 未经证实的；无根据的；不确凿的
A claim, accusation, or story that is unsubstantiated has not been proved to be valid or true.
e.g. I do object to their claim, which I find totally unsubstantiated.
我强烈反对他们的说法，那是毫无根据的。
e.g. ...unsubstantiated rumours about his private life.
有关他私生活的捕风捉影的谣言