広大無辺 こうだいむへん Also written 宏大無辺, 洪大無辺 Meanings な-adjective, の-adjective, Noun boundless; infinite; vast Kanji 広 wide. Read as コウ. 大 big. Read as ダイ. 無 without 辺 vicinity. Read as ヘン. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists