We found 25 dictionaries that define the word firmness:

General (20 matching dictionaries)

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

Business (2 matching dictionaries)

19. Firmness (Phrenology), firmness: Legal dictionary
20. firmness: Financial dictionary

Computing (1 matching dictionary)

21. firmness: Encyclopedia

Medicine (1 matching dictionary)

22. Firmness (Phrenology), firmness: Medical dictionary

Miscellaneous (1 matching dictionary)

23. firmness: Idioms

(Note: See firm as well.)

Definitions from Wiktionary (firmness) ▸ noun:  The state of being firm ▸ noun:  security; steadfastness; good grip ▸ noun:  strictness; mental strength ▸ noun:  physical durability; rigidness (of material) Similar: steadiness, soundness, resoluteness, resolution, resolve, fastness, firmity, firmitude, durity, consistency, more... Opposite: softness, pliability, malleability, suppleness Types: soft, medium, hard, plush, firm, more... Phrases: firmness of purpose, lacking firmness, lacks firmness, lack firmness, muscle firmness, more... Adjectives: great, more, manly, equal, sufficient, gentle, unshaken, quiet, utmost, inflexible, considerable ▸ Words similar to firmness ▸ Usage examples for firmness ▸ Idioms related to firmness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing firmness ▸ Words that often appear near firmness ▸ Rhymes of firmness ▸ Invented words related to firmness