In a brilliant manner; done with brilliance(adverb)
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Use "brilliantly" in a sentence
"Leaders Without a Title brilliantly balance being compassionate with being courageous."
"As he finished the letter, an image of her face in all its complex life, her eyes shining, her expression brilliantly intelligent and receptive, came to him."
"If they collaborate, Bachelet will close her term brilliantly and Piñera will begin his with the right foot forward."