adjectival nouns or quasi-adjectives (keiyodoshi)nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi)yojijukugoboundless;infinite;vast
Other forms
宏大無辺 【こうだいむへん】 (rarely used kanji form) · 洪大無辺 【こうだいむへん】 (rarely used kanji form)