suppletory
suppletive
multideficient
hard-set
malfunction
trouble
flawful
problem
wanting
flaw
defectiveness
faultiness
copout
the jug goes to the well until it breaks
vacuitous
failing
undermaintain
mal-
imperfectible
instability
errant
underfix
blemish
ineffectualness
deficientness
deficit
rough edges
faultable
mutilate
short
fallibility
inadequateness
inadequacy
polish
vitiate
spoil
demerit
deflower
impair
treacherous
incompetency
mar
incompetentness
unreliability
frosh
fumblingness
unexceeded
nonrepair
unsurpassed
shortcoming
flawy
defect
ragged
unexcelled
poor
defectibility
gimmick
bollocks
blunderous
premortem
catch
bollocks up
entangled
nonreliability
half-past-six
die on the vine
destabilise
scantle
rigour
let the grass grow under one's feet
stingy
improvable
shorten
trick
destabilize
banjax
meagre
scrimpy
underoptimize
meagerly
nonefficiency
meager
enmesh
nonimprovement
-penia
unimprovement
dicky
one-handedness
thumbscrew
limp
fritz
weakness
fuster
metaproblem
disaffiliative
fragility
antipathy
defectible