Lexicon of Intellectual and Philosophical Terms

• Hidden / Concealed — A bookish term used to describe a hidden, concealed, obscure concept, idea, motivation, or text that is difficult to fathom or completely inaccessible to immediate understanding. In moral philosophy and ethics, the word often qualifies dissimulated intentions, cryptic reasonings, or esoteric truths that require profound decoding and interpretation.
• Hiddenness / Obscurity — An abstract noun denoting the state, quality, or character of being hidden, obscure, indecipherable, or completely concealed from understanding and reason. In epistemology and moral philosophy, the term refers to the conceptual impenetrability of certain systems of thought or the deliberate obscurity of ethical principles that are difficult to rationalize.