We found 30 dictionaries that define the word hysterical:

General (25 matching dictionaries)

1. hysterical: Merriam-Webster
2. hysterical: Oxford Learner's Dictionaries
3. hysterical: American Heritage Dictionary of the English Language
4. hysterical: Collins English Dictionary
5. hysterical: Vocabulary.com
6. Hysterical, hysterical: Wordnik
7. hysterical: Cambridge Advanced Learner's Dictionary
8. hysterical: Wiktionary
9. hysterical: Webster's New World College Dictionary, 4th Ed.
10. hysterical: The Wordsmyth English Dictionary-Thesaurus
11. hysterical: Infoplease Dictionary
12. hysterical: Dictionary.com
13. hysterical: Online Etymology Dictionary
14. hysterical: Cambridge Essential American English Dictionary
15. Hysterical (album), Hysterical (film), Hysterical: Wikipedia, the Free Encyclopedia
16. Hysterical: Online Plain Text English Dictionary
17. hysterical: Rhymezone
18. hysterical: AllWords.com Multi-Lingual Dictionary
19. hysterical: Webster's 1828 Dictionary
20. hysterical: FreeDictionary.org
21. hysterical: Mnemonic Dictionary
22. hysterical: TheFreeDictionary.com
23. hysterical: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

24. hysterical: Legal dictionary

Computing (1 matching dictionary)

25. hysterical: Encyclopedia

Medicine (3 matching dictionaries)

26. hysterical: Merriam-Webster Medical Dictionary
27. online medical dictionary (No longer online)
28. hysterical: Medical dictionary

(Note: See hysteria as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Of, or arising from hysteria. ▸ adjective:  Having, or prone to having hysterics. ▸ adjective:  Provoking uncontrollable laughter. Similar: psychoneurotic, neurotic, agitated, posthysterical, hysteretical, hysteralgic, hysterographic, hysteretic, hypermanic, histrionical, more... Opposite: calm, collected, composed, placid, serene Types: funny, amusing, hilarious, comical, ridiculous, ludicrous, absurd, more... Phrases: hysterical personality, hysterical paralysis, hysterical neurosis, hysterical blindness, hysterical psychosis, more... Colors:     neon pink,     electric blue,     bright yellow,     lime green,     vivid orange, more... ▸ Word origin ▸ Words similar to hysterical ▸ Usage examples for hysterical ▸ Idioms related to hysterical ▸ Wikipedia articles (New!) ▸ Popular nouns described by hysterical ▸ Words that often appear near hysterical ▸ Rhymes of hysterical ▸ Invented words related to hysterical