Passage 2【Aggregate】 statistics for 1991 were dominated by the s

Passage 2
【Aggregate】 statistics for 1991 were dominated by the sharp decline in output in Central and Eastern Europe and by the severely 【adverse】 effects of the Gulf crisis on the economies of Middle Eastem countries. Estimates of GDP by major geographic region reveal that growth of output accelerated in Latin American and in sub-Saharan Africa, while a pick-up in China helped sustain Asian activity. Despite a sharp slow-down in India, where GDP growth fell from 5. 5 percent in 1990 to 2.5 percent, the population-weighted growth rate of developing countries'GDP-3.5 percent in 1991-continued to 【exceed】 the ordinary measure.
40.What's the meaning of "adverse"?
【正确答案】：bad or worse.