莫大海 ばくだいかい Also written バクダイカイ Meanings Noun malva nut (Scaphium affine) See also: 莫大 (ばくだい). Kanji 莫 must not; do not; be not. Read as バク. 大 big. Read as ダイ. 海 sea. Read as カイ. Jinuma: Japanese Dictionary · Word lists