難問題

なんもんだい

difficult problem or question

難問山積

なんもんさんせき

mountain (pile) of difficult problems

答え難い質問

こたえにくいしつもん こたえがたいしつもん

awkward (difficult) question

難

なん

difficulty, trouble, hardship

問

もん とい

counter for questions

難中の難

なんちゅうのなん

the hardest thing of all

百難

ひゃくなん

all obstacles, all sorts of trouble

剣難

けんなん

the calamity of being killed by the sword

万難

ばんなん

many obstacles, innumerable difficulties

女難

じょなん

trouble with women

難物

なんぶつ

hard problem, person hard to please, hard nut to crack

兵難

へいなん

distress of war

後難

こうなん

future problems, consequences

七難

しちなん

great number of faults or defects

多難

たなん

full of troubles, difficulties

法難

ほうなん

religious persecution

小難

しょうなん

small misfortune

無難

ぶなん

safety, security

避難

ひなん

taking refuge, finding shelter, evacuation, escape