We found 28 dictionaries that define the word antagonistic:

General (23 matching dictionaries)

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

Business (1 matching dictionary)

22. antagonistic: Legal dictionary

Computing (1 matching dictionary)

23. antagonistic: Encyclopedia

Medicine (2 matching dictionaries)

24. antagonistic: Merriam-Webster Medical Dictionary
25. antagonistic: Medical dictionary

Slang (1 matching dictionary)

26. antagonistic: Urban Dictionary

(Note: See antagonistically as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Contending or acting against. ▸ adjective:  (biochemistry) Relating to an antagonist. Similar: counter, antipathetical, antipathetic, alienating, hostile, incompatible, negative, antagonize, antagonistical, antagonistick, more... Opposite: amicable, friendly, cordial Types: direct, indirect, active, passive, covert, overt, manifest, latent, apparent, more... Phrases: antagonistic muscles, antagonistic effect, antagonistic muscle, antagonistic pleiotropy, antagonistic reflexes, more... Colors:     black,     red,     dark red,     crimson,     maroon, more... ▸ Words similar to antagonistic ▸ Usage examples for antagonistic ▸ Idioms related to antagonistic ▸ Wikipedia articles (New!) ▸ Popular nouns described by antagonistic ▸ Words that often appear near antagonistic ▸ Rhymes of antagonistic ▸ Invented words related to antagonistic