bril·​lian·​cy | \ ˈbril-yən(t)-sē How to pronounce brilliancy (audio) \
plural brilliancies

Definition of brilliancy

2 : an instance of brilliance

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Examples of brilliancy in a Sentence

the brilliancy of the diamond is shown to good effect by the museum's lighting
Recent Examples on the Web One of these stars may rise from almost invisibility to a brilliance equaling 100,000,000 times the brilliancy of our sun, although, of course, such super novae are so far away that the estimates can be made only with telescopes. Popular Mechanics Editors, Popular Mechanics, "The Wonders of Astronomy: The Cutting Edge Space Telescope...of 1939," 17 Dec. 2020 The truth is that in the history of chess, spanning more than a millennium, there hasn’t been a single human brilliancy, however wayward and unexpected, that a computer could not have located. Brad Leithauser, WSJ, "‘The Grandmaster’ Review: The 64-Square Universe," 8 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brilliancy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of brilliancy

1732, in the meaning defined at sense 1

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Time Traveler for brilliancy

Time Traveler

The first known use of brilliancy was in 1732

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Cite this Entry

“Brilliancy.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

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