antagonism
argumentation
asperity
bias
bumpiness
capriciousness
changeability
changeableness
choppiness
clashing
competency
conflict
contradiction
contrariety
contrast
controversy
cragginess
dappleness
departure
deviation
difference
differentiation
disaccord
disaccordance
disagreement
disconformity
discongruity
discord
discordance
discordancy
discrepancy
discreteness
discrimination
disharmony
disorder
disparity
disproportion
dissension
dissent
dissidence
dissimilarity
dissonance
distinction
distinctness
disunion
disunity
Cauchy-Schwarz inequality
nonequivalence
triangle inequality
unevenness
abuse
anomaly
complexity
defect
diversity
equality
hardship
incongruity
inconsistency
inconvenience
inequity
inferiority
injustice
irregularities
poverty
servitude
suffer
superiority
frivolity
polity
quality