Antonyms of adj phosphorescent

1 sense of phosphorescent

Sense 1
phosphorescent -- (emitting light without appreciable heat as by slow oxidation of phosphorous; "the phosphorescent glow of decaying wood")

INDIRECT (VIA light) -> dark -- (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")

Similarity of adj phosphorescent

1 sense of phosphorescent

Sense 1
phosphorescent -- (emitting light without appreciable heat as by slow oxidation of phosphorous; "the phosphorescent glow of decaying wood")
       => light (vs. dark) -- (characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light")