大正解 だいせいかい Meanings Noun bang on the money; spot on; right answer See also: 正解 (せいかい). Kanji 大 big. Read as ダイ. 正 correct. Read as セイ. 解 undo. Read as カイ. Example sentences お母さんの言う通り、傘持ってって大正解だった。おかげで帰りは濡れずに済んだよ。Mom was totally right when she told me to take an umbrella. Thanks to her, I got home without getting wet. Jinuma: Japanese Dictionary · Word lists