Other hyponyms of difficultness include
effortfulness,
asperity,
grimness,
hardship,
rigor,
rigorousness,
rigour,
rigourousness,
severeness,
severity,
hardness,
ruggedness,
formidability,
toughness,
burdensomeness,
heaviness,
onerousness,
oppressiveness,
niceness,
subtlety,
inconvenience,
worriment,
problem,
trouble,
facer,
killer,
kink,
pisser,
booby trap,
pitfall,
snorter,
balk,
baulk,
check,
deterrent,
handicap,
hinderance,
hindrance,
impediment,
wrinkle,
bitch,
plight,
predicament,
quandary,
rattrap,
pinch,
fix,
hole,
jam,
kettle of fish,
mess,
muddle,
pickle,
hard time,
rough sledding,
strain,
stress,
mire,
job,
problem,
situation,
urinary hesitancy,
wall,
thorniness.