unsubstantiated
un|sub|stan|ti|at|ed /'ʌnsəbst'ænʃieɪtɪd/
[ADJ]
A claim, accusation, or story that is unsubstantiated has not been proved to be valid or true.
I do object to their claim, which I find totally unsubstantiated.
...unsubstantiated rumours about his private life.
= unconfirmed
[ADJ]
A claim, accusation, or story that is unsubstantiated has not been proved to be valid or true.
I do object to their claim, which I find totally unsubstantiated.
...unsubstantiated rumours about his private life.
= unconfirmed