As nouns the difference between madman and lunatic
is that madman is a male who is insane or mentally disturbed while lunatic is an insane person.
As an adjective lunatic is
crazed, mad, insane, demented.
madman
English
Noun
(madmen)
A male who is insane or mentally disturbed.
Synonyms
* See also
Related terms
* madwoman, madwomen
lunatic
English
Synonyms
* (l)
* See also
Synonyms
* crazed, insane, mad, demented, maniacal, psychotic, crazed; see also