We found 30 dictionaries that define the word madman:

General (26 matching dictionaries)

1. madman: Longman Dictionary of Contemporary English
2. madman: Merriam-Webster
3. madman: Oxford Learner's Dictionaries
4. madman: American Heritage Dictionary of the English Language
5. madman: Collins English Dictionary
6. madman: Vocabulary.com
7. Madman, madman: Wordnik
8. madman: Cambridge Advanced Learner's Dictionary
9. madman: Wiktionary
10. madman: Webster's New World College Dictionary, 4th Ed.
11. madman: The Wordsmyth English Dictionary-Thesaurus
12. madman: Infoplease Dictionary
13. madman: Dictionary.com
14. madman: Cambridge Essential American English Dictionary
15. Madman (Image Comics), Madman (Marvel Comics), Madman (disambiguation), Madman (film), Madman (song), Madman, The Madman (book), The Madman (film), The Madman: Wikipedia, the Free Encyclopedia
16. Madman: Online Plain Text English Dictionary
17. madman: Webster's Revised Unabridged, 1913 Edition
18. madman: Rhymezone
19. madman: AllWords.com Multi-Lingual Dictionary
20. madman: Webster's 1828 Dictionary
21. Madman: Dictionary of Phrase and Fable (1898)
22. madman: FreeDictionary.org
23. madman: Mnemonic Dictionary
24. madman: TheFreeDictionary.com

Computing (1 matching dictionary)

25. madman: Encyclopedia

Miscellaneous (1 matching dictionary)

26. MADMAN: Acronym Finder

Slang (2 matching dictionaries)

27. Madman: Street Terms: Drugs and the Drug Trade
28. MaDMAn: Urban Dictionary

(Note: See madmans as well.)

Definitions from Wiktionary ( ) ▸ noun:  A man who is insane or mentally disturbed. ▸ noun:  A person who makes risky and questionable decisions. ▸ noun:  A daredevil. Similar: lunatic, maniac, mad person, madperson, madwoman, madchild, semimadman, madcap, mad hatter, madhead, more... Opposite: sane person, rational person, level-headed person Types: homicidal maniac, suicidal maniac, maniac, psychopath, sociopath, psychotic, manic depressive, more... Phrases: Madman Across the Water, Madman Entertainment, Madman theory, Madman of the People, Madman Muntz, more... Adjectives: poor, old, dangerous, such, young, furious, blest, real, harmless, inspired, mere Colors:     red,     black,     dark purple,     blood red,     crimson, more... ▸ Words similar to madman ▸ Usage examples for madman ▸ Idioms related to madman ▸ Wikipedia articles (New!) ▸ Popular adjectives describing madman ▸ Words that often appear near madman ▸ Rhymes of madman ▸ Invented words related to madman