1560s, "not having received the rite of confirmation," from un- (1) "not" + confirmed. Meaning "not supported by further evidence" is attested from 1670s.
实用例句
1. There are unconfirmed reports of several small villages buried by mudslides.
据未经证实的报道说，几个小村庄被泥石流吞没了。
来自柯林斯例句
2. Unconfirmed reports said that at least six people had been killed.
未经证实的报道称至少有六人丧生。
来自《权威词典》
3. There are unconfirmed reports that two people have been shot in the neighbouring town of Lalitpur.
据报道有两人在勒利德布尔城附近被枪杀，但尚未得到证实。
来自柯林斯例句
4. There were unconfirmed reports that the rebel army was advancing upon the town.
据未经证实的报告说,叛军正向市区推进.
来自《简明英汉词典》
5. There are unconfirmed reports he tried to commit suicide.
