Obscurantism (, from the Latin obscurans, “darkening”) is the practice of deliberately preventing the facts or the full details of some matter from becoming known. There are two, common, historical and intellectual, denotations: 1) restricting knowledge—opposition to the spread of knowledge, a policy of withholding knowledge from the public, and, 2) deliberate obscurity—an abstruse style (as in literature and art) characterized by deliberate vagueness.