なんぎょうくぎょう 難行苦行 LinksSentence search for 難行苦行Sentence search for なんぎょうくぎょうKanji details for 難, 行 and 苦Edit in JMdict Noun, Suru verb1. penance; hardshipYojijukugo (four character compound) Discussions Log in to talk about this word.