形容詞 predacious:

1. hunting and killing other animals for food
   同義詞：predaceous
2. living by or given to victimizing others for personal gain- W.E.Swinton
   同義詞：predaceous, predatory

predacious 也作 pre.da.ceous

adj.（形容詞）
Living by seizing or taking prey; predatory.
捕食性的：靠捕捉獵物為生的；食肉的
Given to victimizing, plundering, or destroying for one`s own gain:
掠奪性的：為個(gè)人利益而慣于犧牲、掠奪或毀壞他人的：
例句：
.the most vicious, predacious, esurient and desperate elements of this society.(Claude Brown)
.這個(gè)社會中最為惡毒的、掠奪成性的、貪婪的和絕望的成分.(克勞德·布朗)

來源：
From Latin praed3ro [to plunder] * see predatory
源自 拉丁語 praed3ro [掠奪] *參見 predatory

【引伸】
preda.ciousness 或
preda.ceousness 或
predac.ity