おやふこう 親不孝 Common word Wanikani level 42 Play audio LinksSentence search for 親不孝Sentence search for おやふこうSentence search for 親不幸Kanji details for 親, 不 and 孝Edit in JMdict Noun, Suru verb, Intransitive verb, Na-adjective (keiyodoshi)1. lack of filial piety; disobedience to one's parentsAntonym: 親孝行Other forms親不幸 【おやふこう】Notes親不幸: Irregular kanji usage. Discussions Log in to talk about this word.