adept:
unintelligent,
incapable,
green,
lazy,
ignorant,
slow,
coarse,
clumsy,
inept,
awkward,
incompetent,
rough,
indefinite,
unskilled,
stupid,
unable,
unskillful,
inexperienced.
apt:
incorrect,
unsuitable,
disinclined,
inapt.
clever:
naive,
foolish,
idiotic, unclever,
senseless.
keen:
obtuse,
unenthusiastic,
blunt,
reluctant,
pointless,
dull,
uninterested.
sharp:
flat,
frank,
forthright,
mild,
dark,
unstylish,
moderate,
kind,
nice,
bland,
honest,
aboveboard,
tasteless,
indistinct,
boring,
calm,
undefined,
typical,
old-fashioned,
low,
unaware,
normal,
benevolent.