丹たん唇しんたんしんMeanings1nounred lipsrare termRare literary term for red lips, often used in poetic or classical contexts. The more common synonym is 朱唇 (しゅしん).See also: 朱唇古こ典てん文ぶん学がくでは、女じょ性せいの美うつくしさを「丹たん唇しん」と表ひょう現げんすることがある。In classical literature, a woman's beauty is sometimes described with the word 丹唇.