Absolute Idealism refers to the philosophical concept that reality is ultimately made up of ideas and that these ideas are perfectly interconnected. It originated in the 18th century and has since then been a fundamental component of many philosophical schools. In terms of synonyms, some concepts that are related to Absolute Idealism include metaphysics, ontology, and transcendentalism. Additionally, related ideas include pantheism, monism, and idealism in general. Moreover, some other philosophical schools that have been in dialogue with Absolute Idealism include Existentialism, Phenomenology, and Postmodernism. Ultimately, Absolute Idealism represents an influential and ongoing conversation in philosophical discourse.