na-adjective, noun
charming; bewitching; enchanting
Rare literary word describing a captivating, alluring beauty, often with a rich or voluptuous nuance. Not used in everyday conversation.
彼女の濃艶な微笑みに、誰もが心を奪われた。
Everyone was captivated by her bewitching smile.
Compound of 濃 (rich, deep) and 艶 (charm, allure). The exact historical derivation is uncertain; it is a rare literary coinage.