We found 8 dictionaries that define the word fastnesses:

General (6 matching dictionaries)

1. fastnesses: Merriam-Webster
2. fastnesses: Vocabulary.com
3. fastnesses: Wordnik
4. fastnesses: Cambridge Advanced Learner's Dictionary
5. fastnesses: Wiktionary
6. fastnesses: TheFreeDictionary.com

Business (1 matching dictionary)

7. fastnesses: Legal dictionary

Medicine (1 matching dictionary)

8. fastnesses: Merriam-Webster Medical Dictionary

Opposite: slowness, sluggishness, tardiness, lethargy Types: stronghold, fortress, bastion, citadel, more... Adjectives: rocky, remote, inaccessible, wild, natural, own, native, rugged, impregnable, northern, inner ▸ Words similar to fastnesses ▸ Usage examples for fastnesses ▸ Idioms related to fastnesses ▸ Wikipedia articles (New!) ▸ Words that often appear near fastnesses ▸ Rhymes of fastnesses ▸ Invented words related to fastnesses