Copiousness in poetry refers to a deliberate abundance and profusion of language, imagery, or rhetorical devices that creates an effect of richness, generosity, or overwhelming plenty. This rhetorical strategy, rooted in classical traditions of eloquence, employs multiplication of examples, elaboration of description, or accumulation of parallel structures to demonstrate mastery and create textural density. Copiousness can serve persuasive purposes by overwhelming through sheer accumulation, aesthetic purposes by creating luxuriant verbal textures, or emotional purposes by matching linguistic abundance to thematic concerns with plenitude or excess.

Copiousness denotes stylistic richness through abundant detail, metaphor, or lexical variety—associated with Renaissance or Romantic exuberance rather than minimalist aesthetics.