質実剛健 しつじつごうけん Meanings Noun, な-adjective unaffected and sincere, with fortitude and vigor (vigour) Kanji 質 quality. Read as シツ. 実 real. Read as ジツ. 剛 sturdy. Read as ゴウ. 健 healthy. Read as ケン. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists