pensiveness

1. The conceit came to me of a copious grove of singing birds, and in their midst a simple harmonic duo, two human souls, steadily asserting their own pensiveness, joyousness.
   我忽发奇想，有百鸟欢唱的富饶园林，啁啾嘀啭之间有个简单的一对，两个人的灵魂，坚定地道出了的忧思和欢乐。
2. He caught the mixture of surprise and pensiveness in her voice and looked up immediately.
   他听出她声音中惊奇夹着沉思，立即抬起头来。

noun

1. deep serious thoughtfulness

   Synonym:    meditativenesscontemplativeness

2. persistent morbid meditation on a problem

   Synonym:    brooding