Gonzo and Madman

Gonzo adjective - Conspicuously or grossly unconventional or unusual.

Madman and gonzo are semantically related. In some cases you can use "Madman" instead an adjective "Gonzo".

Madman noun - A person who seeks out very dangerous or foolhardy adventures with no apparent fear.

Gonzo and madman are semantically related. Sometimes you can replace term "Gonzo" with "Madman", this nouns are similar.