flashy is a masculine adjective that qualifies something that glows, é glowing, brillant, resplendent, sparkling or glittering.
This word comes from Latin, more specifically from the term glows, which means "to shine with light of great intensity". In Portuguese, the transitive verb shine also means shine, being that in a figurative sense it can mean to stand out or highlight.
In Brazil, the most frequent use of the word "fúlgidos" is found in the letter of the Brazilian National Anthem: And the sun of freedom, in flashing rays, shone in the sky of the Fatherland at that moment…
With lyrics by Osório Duque Estrada, the Brazilian National Anthem has a great wealth in its writing, and can present multiple interpretations.
The expression "flashing rays" is used to describe the "sun of freedom". As the word "brightened" then appears, the adjective glowing is used to avoid repetition. The phrase "And the sun of freedom in bright rays, shone in the sky of the motherland at that moment", would impoverish the anthem.
In this case, the "sun of freedom", which shone with its "sparkling rays", signifies the brightness of Brazil's independence from Portugal. "At that moment" is the moment when the "resounding cry" was heard. This phrase from the anthem is a celebration of the freedom gained after the "dark" years of colonialism.
