大問題 だいもんだい Meanings Noun big problem; major issue; big controversy Kanji 大 big. Read as ダイ. 問 question. Read as モン. 題 topic. Read as ダイ. Common phrases 大問題になる Words containing 大問題 重大問題 (じゅうだいもんだい) serious (vital) question Jinuma: Japanese Dictionary · Word lists