another string to one's bow
inefficient
ineffective
failable
fumbling
ragged
clumsy
incompetent
bungling
hopeless
the jug goes to the well until it breaks
capacity
out of practice
rusty
unartful
conquest
brush up
unskill
hand
unability
remedial
tekkers
do-or-die
technique
ham-fisted
weak
failingness
failing
skillessness
fail
string to one's bow
touch
skillful
prowess
abilitation
fight a losing battle
have one's fingers all thumbs
skill
Jenga
doplic
subtlety
unskilfulness
microskill
futile
expertness
find out the hard way
reskill
thumbscrew
difficulty level
pull oneself up by one's bootstraps
incapableness
enmesh
mutton-fisted
miss
deal
grapple
incompetence
contend
make do
manage
cope
copout
ease
wherewithal
worst
built different
run to waste
pons asinorum
get by
inability
make out
proficiency
stultify
disability
unable
handicap
disablement
impairment
lay an egg
the cobbler always wears the worst shoes
trickiness
you're only as good as your last shift
suppletory
lubberly
waterproof
unably
adeptness
be riding for a fall
clumsiness
lose one's touch
rude
noncompletion
jockey
drop the ball
defect
deft-handedness