1. (noun) the quality of being shockingly cruel and inhumane

• atrociousness
• barbarity
• barbarousness
• heinousness

2. (noun) an act of atrocious cruelty

• inhumanity

1. (noun) an act of atrocious cruelty

• barbarism
• barbarity
• brutality
• savagery
• enormity
• outrage

1. (noun) the quality of being shockingly cruel and inhumane

• inhumaneness
• inhumanity

2. (noun) an act of atrocious cruelty

• cruelty
• inhuman treatment

1. (noun) the quality of being shockingly cruel and inhumane

• atrocious
• atrocious
• flagitious
• flagitious
• grievous
• grievous
• monstrous
• monstrous
• barbarous
• brutal
• cruel
• fell
• roughshod
• savage
• vicious
• flagitious
• heinous

2. (noun) an act of atrocious cruelty

• atrocious
• flagitious
• grievous
• monstrous