say it: ahr-KAY-dee-uhn
arcadian is a noun and adjective meaning "an inhabitant of Arcadia". It carries 2 recorded senses.
(used with regard to idealized country life) idyllically rustic
“a country life of arcadian contentment”
“a pleasant bucolic scene”
“charming in its pastoral setting”
“rustic tranquility”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for arcadian come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.