unsubstantiated
/ˌʌnsəbˈstænʃiˌeɪtɪd/
adjective
- Not supported or proven by evidence; lacking proof or confirmation.
- The article made several unsubstantiated claims about the politician's past.
- The teacher dismissed the unsubstantiated rumor about the school closing.
- Without any documents, his story remained unsubstantiated and suspicious.
Antonyms