Why this word is great
ARCADIANISM — [Noun] A philosophical or cultural idealization of a perfected rustic state, evoking a simple, idyllic life in unspoiled, harmonious nature. From the adjective Arcadian (pertaining to Arcadia, a region of ancient Greece idealized for its rustic simplicity and peace) combined with the noun-forming suffix -ism (denoting a system, principle, or condition). Unlike pastoralism (which denotes a specific agrarian practice or literary mode) or utopianism (which imagines elaborate social blueprints), Arcadianism is the purer, more wistful longing for a prelapsarian countryside. It is the golden light in a Poussin painting, the imagined scent of thyme on a sun-baked hillside, and the quiet ache of reading Virgil's Eclogues in a bustling metropolis—a collective daydream of innocence that, in its very perfection, mourns the modernity that made it necessary.