べらぼう extreme Meanings べらぼう · ベラボー na-adjective, noun, usually in kana extreme; terrible; excessive usually in kana absurd; unreasonable; foolish noun, usually in kana, derogatory fool; idiot In sentences Furigana 彼かれはべらぼうな大金持おおがねもちだ。 He is made of money. #111014