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Definition of brilliancy

brilliancy

/ˈbrɪl.jən.si/
bril · lian · cy

Adverb:brilliantly
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Plural:brilliancies
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Adjective:brilliant
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brilliancy Lexical Profile

brilliancy Game Scores & Validity

• noun

1

Intense brightness, luster, or radiance of light or color.

Example

"The cut of the diamond was designed to maximize its natural brilliancy under the gallery lights."


2

Exceptional intelligence, talent, or distinction in artistic or intellectual performance.

Example

"Critics praised the young pianist for the sheer brilliancy of her technique during the concerto."


3

A chess game or combination played with spectacular, imaginative, and often sacrificial tactics.

Example

"The grandmaster was awarded a special prize for his stunning queen-sacrifice brilliancy in the final round."

Synonyms
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Antonyms
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Word Nuance & Usage

While "brilliance" is the standard modern form for general brightness and exceptional intellect, "brilliancy" is now dated in everyday contexts, though it remains a standard countable technical term in chess for a game featuring spectacular sacrifice combinations.

Word Origin & Etymology

Formed in the mid-18th century from the adjective "brilliant" (borrowed from French "brillant", present participle of "briller", meaning "to shine") combined with the abstract noun suffix "-cy".

Cite this Entry


Wordmom. (2026). Definition of Brilliancy. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/brilliancy
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