We found 24 dictionaries that define the word slackness:

General (19 matching dictionaries)

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

Business (1 matching dictionary)

18. slackness: Legal dictionary

Computing (1 matching dictionary)

19. slackness: Encyclopedia

Medicine (1 matching dictionary)

20. slackness: Medical dictionary

Miscellaneous (1 matching dictionary)

21. slackness: Idioms

Slang (1 matching dictionary)

22. slackness: Urban Dictionary

(Note: See slack as well.)

Definitions from Wiktionary (slackness) ▸ noun:  The state of being slack; the quality of having slack. ▸ noun:  Vulgarity in West Indian culture. ▸ noun:  A subgenre of dancehall music with sexual lyrics. Similar: slack-handedness, laxity, slopiness, laxness, slouchiness, slothfulness, laxativeness, slackhandedness, laziness, lackadaisicalness, more... Opposite: diligence, industriousness, efficiency, productivity, hard work Types: apathy, laziness, inactivity, sloth, lethargy, more... Adjectives: complementary, general, certain, moral, such, own, much, seasonal, effeminate, apparent, mere ▸ Words similar to slackness ▸ Usage examples for slackness ▸ Idioms related to slackness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing slackness ▸ Words that often appear near slackness ▸ Rhymes of slackness ▸ Invented words related to slackness