adjective · having a property of malignancy, typically referring to cancerous tumors

这种细胞的快速增长显示出明显的恶性倾向。

adjective · describing a self-reinforcing harmful cycle, rapid decline, or runaway economic inflation

公司陷入了竞相降价的恶性竞争。

adjective · evil in nature or producing extremely harmful social consequences

这起恶性案件在当地引起了巨大恐慌。