That scintillates with brief flashes of light; sparkling.(adjective)
Brilliantly clever, amusing or witty.(adjective)
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Use "scintillating" in a sentence
"I overdid it, she thought in terror, as she recalled her scintillating remarks and elaborate manner."
"Pointe's performances have been described as scintillating and legendary, and she spent a few minutes with us to give us the lowdown on what to expect."
"What a "scintillating" speech the new leader made, according to the Mirror."