Rip Van Winkleish
/ˌrɪp van ˈwɪŋklɪʃ/(also Rip Van Winklish)
adjective
Characteristic of or resembling Rip Van Winkle; not aware of or alert to present (especially social and political) conditions.
Origin
Early 19th century; earliest use found in Mechanic's Press (Utica, New York). From the name of Rip Van Winkle + -ish.