The new drug's efficacy remains unproven, as clinical trials have yet to yield conclusive results on its long-term effects.
这种新药的有效性仍未得到证实，因为临床试验尚未就其长期效果得出决定性结论。
Which choice best defines “unproven”?
B — Not tested or confirmed. “unproven” means not tested or confirmed.
Which word means “not tested or confirmed”?
A — unproven. “unproven” means not tested or confirmed.
unproven — not tested or confirmed. In Chinese: 未经证实的.
unproven is pronounced /ʌnˈpruːvən/.
The new drug's efficacy remains unproven, as clinical trials have yet to yield conclusive results on its long-term effects. (这种新药的有效性仍未得到证实，因为临床试验尚未就其长期效果得出决定性结论。)
untested, unverified, speculative — all close in meaning to unproven (not tested or confirmed).
proven, established — each the opposite of unproven (not tested or confirmed).
Yes. unproven is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.