adulteration
arrear
arrearage
arrears
arrestment
asymmetry
baseness
blemish
bug
callowness
catch
contrariety
crack
decline
defalcation
default
defect
defectibility
defection
defectiveness
deficiency
deficit
delinquency
difference
disability
disablement
disequilibrium
disparity
disproportion
disqualification
dissatisfactoriness
drawback
erroneousness
failing
failure
fallibility
falling short
fault
faultiness
faute
fewness
flaw
foible
frailty
heterogeneity
hole
imbalance
imbecility
immaturity
unsatisfactoriness
weakness
discomfort
feebleness
futility
helplessness
hollowness
imperfection
impossibility
impotence
impropriety
inability
inaccuracy
incapacity
incompetence
incongruity
inferiority
infirmity
insignificance
insufficiency
shortcoming
unfairness
uselessness
worthlessness