1.Definition: brilliantly clever

"Scintillating wit", "A play full of scintillating dialogue"

2.Definition: having brief brilliant points or flashes of light

"The scintillating stars"

Related Adjective(s):aglitter, coruscant, fulgid, glinting, glistering, glittering, glittery, scintillant, sparkly

3.Definition: marked by high spirits or excitement

"Scintillating personality"

Related Adjective(s):bubbling, effervescent, frothy, sparkly