What does brilliantly mean?
Brilliantly is an adverb used to describe actions performed with exceptional skill, intelligence, or impressiveness, as well as things that shine or display colour with striking intensity. It derives from the adjective brilliant, which ultimately traces back through French and Italian to the Latin beryllus, meaning beryl, a luminous gemstone — giving the word a long association with light and sparkle. In everyday use, brilliantly most often signals admiration: a plan may be brilliantly executed, a performance brilliantly acted, or a solution brilliantly simple. Its second sense is more literal and descriptive, applied to sunlight, jewels, fabrics, or colours that dazzle the eye. The word carries an unambiguously positive connotation in both British and American English, though British speakers more often deploy it as casual, enthusiastic praise. Versatile and vivid, it lets writers and speakers convey excellence without resorting to blander terms like very well.
adverbIn an exceptionally clever, skilled, or impressive manner; with great brightness or intensity of light or colour.
- In an extremely clever, skilful, or impressive way.
- With great brightness, vividness, or intensity of light or colour.
"She played the violin brilliantly, drawing a standing ovation from the crowd."
"The young chess prodigy brilliantly outmanoeuvred her grandmaster opponent in just nineteen moves."
"Sunlight glinted brilliantly off the freshly fallen snow."
The word traces back to 'beryllus', Latin for beryl — a sparkling gemstone — so calling someone brilliant literally likens them to a shining jewel.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of brilliantly
Brilliantly is formed from the adjective brilliant plus the adverbial suffix -ly. Brilliant entered English from French brillant, meaning 'shining, sparkling', derived from the Italian brillare, 'to shine', which itself likely traces to Latin beryllus, meaning beryl, a gleaming gemstone. The adverb has been in use since at least the early modern period, retaining both its figurative sense of exceptional cleverness and its literal sense of radiant brightness.
Related word forms
How brilliantly is actually used
Neutral to positive register; common in both everyday praise and formal criticism. In British English it is also used as a general intensifier of approval ('that worked brilliantly'), a usage slightly less frequent in American English.
Easily confused with brilliantly
'Brilliant' is the adjective describing something outstanding (a brilliant idea), while 'brilliantly' is its adverb form describing how an action is performed.