- calm, peaceful, and untroubled; tranquil安详的; 宁静的：
her eyes were closed and she looked very serene
她闭着眼, 看上去很平静
serene certainty.
镇静自若, 胸有成竹。
(一般作the serene)
- archaic an expanse of clear sky or calm sea〈古〉晴空; 平静的大海：
not a cloud obscured the deep serene.
一片晴空, 万里无云。
派生词
serenely
adverb词源
late Middle English （describing the weather or sky as clear, fine, and calm）： from Latin serenus.