Synonyms of the word 
MADMAN → LUNATIC - MANIAC - SUFFERER
madman
- n. A male who is insane or mentally disturbed.
lunatic
- n. An insane person.
- adj. crazed, mad, insane, demented.
maniac
- n. An insane person, especially one who suffers from a mania.
- n. A fanatic, a person with an obsession.
sufferer
- n. One who suffers.
- n. One who is afflicted.
If you are interested in words, visit the following sites :
- wiktionary.org/madman For complete definition of a word
- 1word.ws/madman to play with words, suffixs, prefixs, etc.