harmoniousness
har·mo·nious·ness
noun
1.
the property of sounding harmonious
2.
compatibility in opinion and action
Origin
From harmonious + -ness.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.