Antonyms of adj acheronian

1 sense of acheronian

Sense 1
Acheronian, Acherontic, Stygian -- (dark and dismal as of the rivers Acheron and Styx in Hades; "in the depths of an Acheronian forest"; "upon those roseate lips a Stygian hue"-Wordsworth)

INDIRECT (VIA dark) -> light -- (characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light")

Similarity of adj acheronian

1 sense of acheronian

Sense 1
Acheronian, Acherontic, Stygian -- (dark and dismal as of the rivers Acheron and Styx in Hades; "in the depths of an Acheronian forest"; "upon those roseate lips a Stygian hue"-Wordsworth)
       => dark (vs. light) -- (devoid of or deficient in light or brightness; shadowed or black; "sitting in a dark corner"; "a dark day"; "dark shadows"; "dark as the inside of a black cat")