the GNU version of the Collaborative International Dictionary of English
n. solemnness.
The Century Dictionary and Cyclopedia
n. The state or character of being solemn; seriousness or gravity of manner; solemnity. Also solemnness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a trait of dignified seriousness
Word Usage
"This experience gave me a newfound appreciation for the solemness of Yom Kippur, yet the luxury of youthful innocence still kept me from really feeling the need to atone or forgive."