bad
incompetent
unadept
jackleg
untalentedness
skilless
unseen
inexpert
rude
inadequacy
amateur
skillessness
untalented
hopeless
untalentedly
clumsy
bungling
fumbling
talentlessly
unskillfulness
odd-job
unversed
ineffective
inefficient
unhackneyed
unartful
simple-mindedly
lackluster
unskilfulness
improficiency
nonproficiency
weak
unproficiency
ungifted
ham-fisted
stultified
fledgling
unchallenged
lightweight
learningless
facile
not the sharpest knife in the drawer
insufficient
not the sharpest tool in the box
not the sharpest tool in the shed
skilllessness
incompetence
unerudite
untempered
insufficiency