We found 25 dictionaries that define the word quietness:

General (20 matching dictionaries)

1. quietness: Merriam-Webster
2. quietness: Oxford Learner's Dictionaries
3. quietness: Collins English Dictionary
4. quietness: Vocabulary.com
5. Quietness, quietness: Wordnik
6. quietness: Cambridge Advanced Learner's Dictionary
7. quietness: Wiktionary
8. Quietness, quietness: Dictionary.com
9. quietness: Cambridge Essential American English Dictionary
10. Quietness: Wikipedia, the Free Encyclopedia
11. Quietness: Online Plain Text English Dictionary
12. quietness: Webster's Revised Unabridged, 1913 Edition
13. quietness: Rhymezone
14. Quietness: AllWords.com Multi-Lingual Dictionary
15. quietness: Webster's 1828 Dictionary
16. quietness: FreeDictionary.org
17. quietness: Mnemonic Dictionary
18. quietness: TheFreeDictionary.com

Business (2 matching dictionaries)

19. quietness: Merriam-Webster Legal Dictionary
20. quietness: Legal dictionary

Computing (1 matching dictionary)

21. quietness: Encyclopedia

Medicine (1 matching dictionary)

22. quietness: Medical dictionary

Miscellaneous (1 matching dictionary)

23. quietness: Idioms

(Note: See quiet as well.)

Definitions from Wiktionary (quietness) ▸ noun:  Absence of sound; silence or hush. ▸ noun:  Absence of disturbance; calm, stillness or serenity. Similar: tranquillity, quietude, Tranquility, soundlessness, silence, quietus, stillness, disquiet, silentness, nonsilence, more... Opposite: noise, loudness, commotion, racket, clamor Types: silence, stillness, quiet, calm, peace, more... Adjectives: great, perfect, very, strange, extreme, pensive, more, unusual, comparative, sudden, absolute ▸ Words similar to quietness ▸ Usage examples for quietness ▸ Idioms related to quietness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing quietness ▸ Words that often appear near quietness ▸ Rhymes of quietness ▸ Invented words related to quietness