大活躍 だいかつやく Meanings Noun, する verb being very active; being very useful; playing a very active part; making a spectacular showing; great efforts; splendid work See also: 活躍 (かつやく). Kanji 大 big. Read as ダイ. 活 active. Read as カツ. 躍 leap. Read as ヤク. Common phrases 大活躍を見せる 大活躍をする Jinuma: Japanese Dictionary · Word lists