難題なんだいnandai難なん題だい難なん題だいShow answer(Space)Suspend(@)難なん題だい難なん題だいnandaiCommonRelative commonness of this word, based on various sources (incl. newspapers)CommonNoun (common)Noun (common) (futsuumeishi)Noun (common)difficult problem; challenge難なん題だい難なん題だいnandaidifficult problem; challengeWhat does 難題 mean in English?difficult problem; challenge(n)Search the picture dictionary for 難題
