v. 使…悲伤；使…黯然（sadden的过去分词）
adj. 悲伤的；惨然的

Sadden \Sad"den\, v. t. [imp. & p. p. {Saddened}; p. pr. & vb.
n. {Saddening}.]
To make sad. Specifically:
(a) To render heavy or cohesive. [Obs.]

Marl is binding, and saddening of land is the great
prejudice it doth to clay lands. --Mortimer.
(b) To make dull- or sad-colored, as cloth.
(c) To make grave or serious; to make melancholy or
sorrowful.

Her gloomy presence saddens all the scene. --Pope.