/ˌʌnsəbˈstænʃieɪtɪd/
未经证实的;无事实依据的。指某种说法、指控或信念缺乏充分的证据或事实支持。
The newspaper retracted the article because it was based on unsubstantiated claims.
该报纸撤回了那篇文章,因为它基于未经证实的说法。
The committee dismissed the unsubstantiated allegations against the professor, noting that no witness testimony or documentation had been provided to support them.
委员会驳回了对该教授的无据指控,指出没有任何证人证词或文件能够支持这些说法。
该词由前缀 un-(表示否定)和 substantiated 组成。substantiate 源自拉丁语 substantia,意为"实质、本质",由 sub-(在…之下)和 stare(站立)构成,原意是"使有实质内容"。加上否定前缀后,unsubstantiated 便表示"缺乏实质依据的、未被证实的"。该词在英语中多用于法律、新闻和学术语境,强调某一主张尚未得到事实或证据的支撑。