brilliantly
UK[ˈbrɪl.jənt.li]US[ˈbrɪl.jənt.li]
adv
in an extremely intelligent or impressive way
adv
in a way that is very bright, either with light or colour
Morpheme Breakdown
brilliant
ly
brilliant
adjective
ly
adverb suffix
Etymology
the word 'brilliantly' is formed by adding the common english adverbial suffix '-ly' to the adjective 'brilliant'. the core adjective 'brilliant' entered english from french 'brillant', meaning 'shining, sparkling'. the french term derives from italian 'brillare', a verb likely of onomatopoeic origin, imitating the sound or visual effect of a spark or glitter. thus, the modern adverb 'brilliantly' carries the fundamental sense of 'in a shining manner', which evolved metaphorically to describe actions performed with dazzling intelligence or skill, preserving the link between radiant light and exceptional quality.
Analysis
Structure: brilliant (adjective) + ly (adverb suffix)
brilliant (from french 'brillant', present participle of 'briller' meaning 'to shine', from italian 'brillare', possibly of onomatopoeic origin) + ly (from old english '-līċe', an adverbial suffix forming adverbs from adjectives).
Examples
she performed the sonata brilliantly.
the stars shone brilliantly in the clear night sky.
he brilliantly solved the complex problem that had stumped the entire team.