is a specific kind of: intensity, intensiveness.

is a broader term that covers: savageness, savagery.

derivation: angered, enraged, furious, infuriated, maddened | angry, furious, raging, tempestuous, wild | boisterous, fierce, rough | bowelless, cutthroat, fierce | fierce, tearing, trigger-happy, vehement, violent | violent, wild | vehement | violent | ferocious, fierce, furious, savage.