Synonyms for Scintillant (same or very similar meaning)
WordNet sense 1 (having brief brilliant points or flashes of light):
glittering, glittery, scintillating, aglitter, coruscant, fulgid, glinting, glistering, sparklyWordNet sense 2 (emitting or reflecting light readily or in large amounts):
brightFrom the ODE community, based on WordNetadd/edit