unproven /ˌʌnˈpruːvən/ adjective Learner's definition of UNPROVEN
: not tested and shown to be true, good, or useful未经验证的;未经证实的;未经检验的 -
scientifically unproven treatments/therapies未经科学验证的治疗方法
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So much in science still remains unproven.在科学上还有很多东西仍然未被证明。
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He's an unproven rookie. [=a rookie who has not yet shown that he can perform well]他是个能力还未得到证明的新手。