What is another word for "madman"?

Roget's Thesaurus (1911) lists these synonyms for "madman": bedlamite, candidate, crank, crazy, dipsomaniac, dreamer, energumen, enthusiast, errant, fanatic, for, highflier, hypochondriac, idiot, kleptomaniac, knight, low, lunatic, madcap, maniac, monomaniac, raver, rhapsodist, seer.

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