頑丈 がんじょう ganjou solid JLPT N1 na-adjective noun Common word The kanji in this word 頑 stubborn, foolish, firmly JLPT N1 · Strokes 13 丈 In this level 監視 慣習 観衆 願書 干渉 感触 肝心 関税 岩石 感染 Back to the JLPT N1 list Practise these words