[ bril-yuh nt ]
/ ˈbrɪl yənt /



Jewelry. a gem, especially a diamond, having any of several varieties of the brilliant cut.
Printing. a size of type about 3½-point.

Origin of brilliant

1675–85; < French brillant shining, present participle of briller < Italian brillare to glitter (perhaps derivative of an expressive root); see -ant

Related forms

Synonym study

1. See bright. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for brilliant

British Dictionary definitions for brilliant


/ (ˈbrɪljənt) /



Also called: brilliant cut
  1. a popular circular cut for diamonds and other gemstones in the form of two many-faceted pyramids (the top one truncated) joined at their bases
  2. a diamond of this cut
(formerly) a size of a printer's type approximately equal to 4 point

Derived Forms

brilliantly, adverb

Word Origin for brilliant

C17: from French brillant shining, from briller to shine, from Italian brillare, from brillo beryl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012