Anti-Democracy is an ideology that openly opposes or denies democracy either as a form of government or as an ideological idea. Anti-Democracy has different forms, it can range from 
Authoritarian, all the way to 
Anarchist.
Variants
Authoritarian 
Many Authoritarian Anti-Democrats think what that democracy makes the state weak and defenseless. Authoritarians may say that the people aren't competent enough to choose there leader and intelligent tyrant would know better than the unintelligent masses.
There also exists the theory of "The Iron Law of Oligarchy", it is the idea that all forms of government, regardless of how much they try to avoid it, they will always inevitably devolve into the "default state" of government, that being oligarchy.
Libertarian 
Many anarchists & libertarians criticize democracy because of various reasons, some of the most famous ones being that a democratic state remains a state therefore it is still oppressive, but this isn't in direct opposition to democracy.
Taking more critical approach is the idea that democracy is inherently evil because it make people assume that the government has the consent of governed, making it harder for people to oppose government oppression.
Socialist 
Socialists hate democracy (only capitalist) because is it not true democracy, but plutocracy.
Personality
Anti-Democracy usually works together with 
Anarcho-Totalitarianism, because he also unity of libertarian and authoritarian ideologies. More he is less willing to cooperate with 
Authoritarian Democracy from over word "democracy".
Relationships
Friends
- Authoritarianism - Usually I am you, and you are me.
Egoism - "Liberty of the people is not my liberty!"? Based!
Autocracy - You're like two guys taller, and that's great.
Horseshoe Centrism - I agree with you about the meaninglessness of the choice between candidates.
Ingsoc - We REALLY agree about the meaninglessness of the choice between candidates.
Technocracy - Also dislikes 
demcucks. We need a smart goverment!
Combatocracy - A good alternative to elections.
Frenemies
Scientocracy - You have good ideas, like him, but why don't you hate democracy? She's ruining your concept!
Kakistocracy - Ha! Literally demcuck!, But 
Nguema and 
Pol Pot were great.
Enemies
- Democracy - DEMCUCK, REEEEEEEEEEEEEEEEEEE!
Further Information
Literature
The Machiavellians
Democracy: The God That Failed
Wikipedia
Criticism of Democracy
Iron Law of Oligarchy
Videos
The Machiavellians & Democracy: The God That Failed | Anti-Democratic Theory | Polandball Politics