Adjectives

(s)marauding, predatory, raidingcharacterized by plundering or pillaging or marauding“bands of marauding Indians”, “predatory warfare”, “a raiding party”
(s)predatory, rapacious, raptorial, ravening, vulturine, vulturousliving by preying on other animals especially by catching living prey“a predatory bird”, “the rapacious wolf”, “raptorial birds”, “ravening wolves”, “a vulturine taste for offal”
(s)predaceous, predacious, predatoryliving by or given to victimizing others for personal gain“predatory capitalists”, “a predatory, insensate society in which innocence and decency can prove fatal” (Peter S. Prescott), “a predacious kind of animal--the early geological gangster” (W.E.Swinton)