awkward
infelicitous
unmanageable
unskilled
unwieldy
Doric
all thumbs
barbaric
barbarous
blunderheaded
blundering
boorish
botched
bovine
bulky
bumbling
bungling
butterfingered
cacophonous
careless
cloddish
clownish
clumsy-fisted
coarse
contrary
crosswise
crude
cumbersome
cumbrous
deficient
discommodious
doggerel
dysphemistic
elephantine
fingers all thumbs
fumbling
gauche
gawkish
gawky
graceless
gross
half-assed
ham-fisted
ham-handed
haphazard
harsh
heavy-handed
hence
hit-and-miss
hit-or-miss
hulking
hulky
impractical
clumsier
clumsiest
clever
slow
stupid
timid
ugly
useless