I’m aware of the dictionary definition, I want to know why you think Marxism is fine while Marxism-Leninism isn’t. How is Marxism-Leninism authoritarian, when Marxism isn’t? Have you read Critique of the Gotha Programme? You’re “anarchist-washing” Marx, who advocated for a democratically run Worker-State, just like Marxism-Leninism does. All Lenin adds is a critique of Imperialism, the concept of Democratic Centralism (which is already the de-facto form of democratic decision making in the world), and the idea of a Vanguard Party being necessary.
That’s why I’m saying you’re purely operating off vibes. It’s 100% okay to be an Anarchist that appreciates Marx’s critique of Capitalism, and even Lenin’s critique of Imperialism, while instead preferring Anarchism in action, or even Reformist Socialism, but don’t pretend Marx was some hero of anarchism or something.