1. 不真实的：unattended 无陪伴的 | unauthentic 不真实的 | unavailing 无效的
2. 不可靠的：unattractive 不美的 | unauthentic 不可靠的 | unauthorized 非法的
3. 来路不明：unattractive /无魅力的/乏味的/不美的/ | unauthentic /来路不明/ | unauthorized /擅自/未经认可的/
1. He said the data cited in the paper were " unauthentic " and the research methodology was not based on science.
adj