User blog comment:Ngh93/What REALLY makes a villain a Complete Monster?/@comment-1705775-20150327005733

most villains are evil in action or misdeed, even if well-meaning.. the Complete Monster is a step above.

many villains will have some limit (such as not harming children, not resorting to rape and hesitation to commit acts of "For the Evulz") - a Complete Monster has no such limit.

a Complete Monster not only lacks any moral compass they embody a concept of corruption : they not only oppose beauty but life itself, they are so vile that absolutely no chance of a "happy" ending can exist as long as they live.

they can not be bribed, they can not be reasoned with, they will happily use very poor excuses as justification for unspeakable atrocities : they will often be pathological liars, sociopaths of diabolical proportions.

they are seldom mindless thugs, they are almost always cunning and know full well what they are doing is wrong.. yet do it anyway.. they are not insane enough to "know no better" and psychopathically target any that they feel they can harm, usually those weaker and more vulnerable.

a Complete Monster is a solar eclipse of ethics, whose very presence darkens the world around themselves.. they are also frequently the type that die with no honor whatsoever, being dragged back to the pit of Damnation that spawned them.

if a CM survived (or worse wins) expect the series to go to Crapsack World very fast, when a CM dies expect much cheering (even from other bad guys).. when habitual supervillains and thugs cheer the demise of someone who isn't the hero you can usually tell they are a CM.. a CM also tends to have minions who would cheer if they died (save for minions who are too loyal for their own good or too scared to even think of rebelling (after all, if the CM was faking death the consequences would be.. dire).