豁然大悟 かつぜんたいご Meanings Noun, する verb suddenly seeing the light; achieving full enlightenment all of a sudden Kanji 豁 empty. Read as カツ. 然 -ly. Read as ゼン. 大 big. Read as タイ. 悟 realize. Read as ゴ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists