Plutonian

Of or relating to Pluto, the Greek and Roman god of the underworld; demonic, infernal.

Pertaining to the astrological influence of Pluto (dwarf planet).

Of or relating to the dwarf planet Pluto.

Of, relating to, or having characteristics associated with the underworld; dark, gloomy; mournful.

Synonym of plutonic (“of or pertaining to rocks formed deep in the Earth's crust, rather than by volcanoes at the surface of the Earth”).

(historical) Synonym of plutonic (“of, pertaining to, or supporting plutonism, the theory that the rocks of the Earth were formed in fire by volcanic activity, with a continuing gradual process of weathering and erosion, then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again”).

An inhabitant of the dwarf planet Pluto.

A person under the astrological influence of Pluto, (dwarf planet).

(historical) A proponent of plutonism; a plutonist.