terrorism (n.)

• acuteness
• anarchism
• animality
• atrocity
• barbarity
• bloodlust
• brutality
• despotism
• destructiveness
• domination
• extremity
• fascism
• ferociousness
• fierceness
• force
• furiousness
• harshness
• impetuosity
• inclemency
• inhumanity
• intensity
• malignity
• mercilessness
• mindlessness
• murderousness
• oppression
• pitilessness
• revolutionism
• rigor
• roughness
• savagery
• severity
• sharpness
• syndicalism
• terrorization
• tyranny
• vandalism
• vehemence
• venom
• viciousness
• violence
• virulence