The soil in the region is deficient in nitrogen, which limits the growth of leguminous crops.
该地区的土壤缺乏氮，这限制了豆科作物的生长。
Which choice best defines “deficient”?
C — Lacking. “deficient” means lacking.
Which word means “lacking”?
A — deficient. “deficient” means lacking.
deficient — lacking. In Chinese: 缺乏的，不足的.
deficient is pronounced /dɪˈfɪʃnt/.
The soil in the region is deficient in nitrogen, which limits the growth of leguminous crops. (该地区的土壤缺乏氮，这限制了豆科作物的生长。)
insufficient, inadequate, lacking — all close in meaning to deficient (lacking).
sufficient, abundant — each the opposite of deficient (lacking).
Yes. deficient is on the SAT Prep Easy list — mid-frequency academic words that do get tested. 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.
de(lack)+ficient(do)