atrociousness
atrocity
barbarity
brutality
cruelty
ferocity
inhumanity
unfeelingness
insensitiveness
insensitivity
inconsiderateness
inconsideration
thoughtlessness
unhelpfulness
callousness
desertion
discourtesy
disloyalty
disrespect
harshness
haughtiness
hopelessness
impertinence
impiety
imprudence
ingratitude
injustice
irrationality
misrepresentation
neglect
obloquy
partiality
rancor
rudeness
superciliousness
unfairness
unpleasantness
unreasonableness
kindness
mercy