怡い然ぜんいぜんMeanings1adverb taking the 'to' particle, taru-adjectivedelightful; enjoyablearchaicArchaic literary word describing a state of being pleased or content, often used adverbially with と or as a taru-adjective.彼かれは怡い然ぜんとして微笑ほほえんだ。He smiled delightedly.
