Vaccination is a preventive strategy that has dramatically reduced the incidence of infectious diseases.
接种疫苗是一种预防性策略，已大幅降低了传染病的发病率。
Which choice best defines “preventive”?
B — Designed to stop something undesirable. “preventive” means designed to stop something undesirable.
Which word means “designed to stop something undesirable”?
D — preventive. “preventive” means designed to stop something undesirable.
preventive — designed to stop something undesirable. In Chinese: 预防的.
preventive is pronounced /prɪˈvɛntɪv/.
Vaccination is a preventive strategy that has dramatically reduced the incidence of infectious diseases. (接种疫苗是一种预防性策略，已大幅降低了传染病的发病率。)
precautionary, prophylactic, protective — all close in meaning to preventive (designed to stop something undesirable).
reactive, curative — each the opposite of preventive (designed to stop something undesirable).
Yes. preventive 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.