roistero

Roistero is a term used in Italian to refer to a person who roisters or to describe lively, noisy revelry. As a noun, roistero denotes a reveler, someone who participates in boisterous merrymaking; as an adjective, roistero describes behavior, events, or atmospheres marked by exuberant, often rowdy festivity. The English equivalents are roisterer (noun) and roisterous (adjective). The word appears in literary, journalistic, and informal Italian, and can carry either a playful sense of merriment or a critical nuance of excess depending on context.

Etymology is generally traced to the English verb roister, which itself comes from Old French roisterer. The Italian form adapts the term to its own morphology, yielding both a noun and an adjective.

In modern usage, roistero can describe a person who enjoys loud socializing, nights out, and lively celebrations, and it may also apply to scenes or occasions characterized by such behavior. The connotation ranges from affectionate to mildly pejorative, depending on tone and audience.

See also: roister, roisterous, revel, revelry.