The word "Crazymen" is a colloquial term used to describe someone who behaves in an unpredictable or erratic manner. Some synonyms for this word include "insane," "unhinged," "mad," "lunatic," "deranged," "psychotic," and "maniac." These words carry a strong connotation and suggest that the person being described is out of control or has lost touch with reality. Other milder alternatives for "crazymen" include terms such as "eccentric," "quirky," "offbeat," "unconventional," or "unusual." These words suggest some level of uniqueness or individuality in one's behavior, but not necessarily a complete loss of sanity.