not proved to be true by evidence synonym unsupported未经证实的;未被证明的 an unsubstantiated claim/rumour, etc. 未经证实的说法、传言等 The court found that most of her claims were unsubstantiated. 法院发现她的大部分主张都是没有根据的。 There were unsubstantiated rumours of abuse at the prison. 未经证实的传言称监狱里存在虐待行为。
Oxford Collocations DictionaryUnsubstantiated is used with these nouns:- accusation
- allegation
- assertion
- …