All 5 Uses

solemn
in
Through the Looking-Glass
(Auto-generated)

'What shall I repeat to her?' said Tweedledee, looking round at Tweedledum with great solemn eyes, and not noticing Alice's question.†
Chpt 4

solemn = very serious--possibly dignified
Why, if ever I DID fall off—which there's no chance of—but IF I did—' Here he pursed up his lips and looked so solemn and grand that Alice could hardly help laughing.†
Chpt 6
'It can talk,' said Haigha, solemnly.
Chpt 7 *

solemnly = with seriousness and dignity
The knight looked so solemn about it that Alice did not dare to laugh.†
Chpt 8

solemn = very serious--possibly dignified
'As to fishes,' she said, very slowly and solemnly, putting her mouth close to Alice's ear, 'her White Majesty knows a lovely riddle—all in poetry—all about fishes.†
Chpt 9

solemnly = with seriousness and dignity

Definitions:

(1) (solemn)
in a very serious (and often dignified) manner
(2) (meaning too rare to warrant focus)
Less commonly, solemn can mean that something was done with great or appropriate ceremony. It can also be used to describe something as dark or undecorated.