The scientist assured the public that the new food additive was innocuous, citing decades of research showing no adverse effects on laboratory animals.
科学家向公众保证，这种新食品添加剂是无害的，并引用了数十年的研究，表明对实验动物没有不良影响。
Which choice best defines “innocuous”?
A — Harmless; inoffensive.. “innocuous” means Harmless; inoffensive..
Which word means “Harmless; inoffensive.”?
D — innocuous. “innocuous” means Harmless; inoffensive..
innocuous — Harmless; inoffensive.. In Chinese: 无害的；无恶意的.
innocuous is pronounced //ɪˈnɒkjuəs//.
The scientist assured the public that the new food additive was innocuous, citing decades of research showing no adverse effects on laboratory animals. (科学家向公众保证，这种新食品添加剂是无害的，并引用了数十年的研究，表明对实验动物没有不良影响。)
harmless, benign, inoffensive — all close in meaning to innocuous (Harmless; inoffensive.).
harmful, dangerous — each the opposite of innocuous (Harmless; inoffensive.).
Yes. innocuous is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. 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.
in(不) + noc(害) → 不伤人。