증거나 사실에 의해 입증되거나 확인되지 않은.
Not supported or proven by evidence, facts, or verification.
예문:
"The newspaper was sued for publishing unsubstantiated rumors about the celebrity's private life."
"The committee dismissed the allegations because they remained entirely unsubstantiated by any physical evidence."
"Investors were warned not to make decisions based on unsubstantiated reports circulating on social media."