We found 26 dictionaries that define the word pertinacious:

General (23 matching dictionaries)

1. pertinacious: Longman Dictionary of Contemporary English
2. pertinacious: Merriam-Webster
3. pertinacious: Oxford Learner's Dictionaries
4. pertinacious: American Heritage Dictionary of the English Language
5. pertinacious: Collins English Dictionary
6. pertinacious: Vocabulary.com
7. Pertinacious, pertinacious: Wordnik
8. pertinacious: Cambridge Advanced Learner's Dictionary
9. pertinacious: Wiktionary
10. pertinacious: Webster's New World College Dictionary, 4th Ed.
11. pertinacious: The Wordsmyth English Dictionary-Thesaurus
12. pertinacious: Infoplease Dictionary
13. Pertinacious, pertinacious: Dictionary.com
14. Pertinacious: Online Plain Text English Dictionary
15. pertinacious: Webster's Revised Unabridged, 1913 Edition
16. pertinacious: Rhymezone
17. Pertinacious: AllWords.com Multi-Lingual Dictionary
18. pertinacious: Webster's 1828 Dictionary
19. pertinacious: FreeDictionary.org
20. pertinacious: Mnemonic Dictionary
21. pertinacious: TheFreeDictionary.com

Business (1 matching dictionary)

22. pertinacious: Legal dictionary

Computing (1 matching dictionary)

23. pertinacious: Encyclopedia

Miscellaneous (1 matching dictionary)

24. pertinacious: A Word A Day

(Note: See pertinaciously as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Holding tenaciously to an opinion or purpose. ▸ adjective:  Stubbornly resolute or tenacious. Similar: dogged, stubborn, dour, unyielding, bulldog, tenacious, persistent, persistant, opinative, obdurate, more... Opposite: fickle, indecisive, wavering, vacillating, uncommitted Types: tenacious, persistent, resilient, determined, stubborn, more... Colors:     midnight blue,     charcoal,     burgundy,     forest green,     deep purple, more... ▸ Words similar to pertinacious ▸ Usage examples for pertinacious ▸ Idioms related to pertinacious ▸ Wikipedia articles (New!) ▸ Popular nouns described by pertinacious ▸ Words that often appear near pertinacious ▸ Rhymes of pertinacious ▸ Invented words related to pertinacious