We found 14 dictionaries that define the word unfastening:

General (12 matching dictionaries)

1. unfastening: Merriam-Webster
2. unfastening: Collins English Dictionary
3. unfastening: Vocabulary.com
4. Unfastening, unfastening: Wordnik
5. unfastening: Cambridge Advanced Learner's Dictionary
6. unfastening: Wiktionary
7. unfastening: Dictionary.com
8. unfastening: Cambridge Essential American English Dictionary
9. unfastening: Rhymezone
10. unfastening: FreeDictionary.org
11. unfastening: Mnemonic Dictionary
12. unfastening: TheFreeDictionary.com

Business (1 matching dictionary)

13. unfastening: Legal dictionary

Computing (1 matching dictionary)

14. unfastening: Encyclopedia

(Note: See unfasten as well.)

Definitions from WordNet (unfastening) ▸ noun:  loosening the ties that fasten something Opposite: fastening, securing, attaching ▸ Words similar to unfastening ▸ Usage examples for unfastening ▸ Idioms related to unfastening ▸ Wikipedia articles (New!) ▸ Popular adjectives describing unfastening ▸ Words that often appear near unfastening ▸ Rhymes of unfastening ▸ Invented words related to unfastening