All 5 Uses

somber
in
The Bridge of San Luis Rey
(Auto-generated)

Straight, somber and impersonal, he entered the actress's room and stood waiting.
Chpt 3 *

somber = serious--without humour or fun
"I'm going out for a walk," replied Esteban somberly, fastening his belt.
Chpt 3

somberly = solemnly (in a manner that is serious--not cheerful or lighthearted)
And she was filled with a somber indignation, for she knew she was gazing at one of the richest women in Peru, and the blindest.†
Chpt 2
There was no way of knowing who their parents were, but Limean gossips, noticing as the boys grew older how straight they held themselves and how silent and somber they were, declared them to be Castilian and laid them in turn at all sorts of crested doorways.†
Chpt 3
Their somber faces took on from these labors a male and gypsy cast.†
Chpt 3

Definitions:

(1) (somber as in: a somber mood)
serious (without cheer or lightheartedness); or sad
(2) (somber as in: somber colors)
lacking brightness or color -- perhaps gloomy
(3) (meaning too rare to warrant focus)