plüˈtōnēən, ˈ ̷ ̷ ̷ ̷ ̷ ̷ ̷ ̷ adjective
Etymology: Latin plutoni us plutonian (from Greek ploutōnios, from Ploutōn Pluto, Greek god of the subterranean world of the dead) + English -an
1. sometimes capitalized
a. : of or relating to the lower world : infernal
b. : resembling the lower world : grim and gloomy : harsh and unpleasing
a plutonian darkness
such plutonian landscapes
2. : plutonic 1
3. : of or relating to the planet Pluto