General terms:
* Epic poem: This is the most common term, referring to a long, narrative poem that celebrates the heroic deeds of a central character. Examples include The Odyssey and Beowulf.
* Narrative poem: This is a broader term that encompasses any poem that tells a story. It can be long or short, but it typically focuses on plot and characters.
* Long poem: This is a simple and straightforward term that simply refers to a poem that is longer than average.
* Verse novel: This term is used for poems that have a similar length and structure to a novel. They often explore complex characters and themes.
Specific types:
* Ballad: This is a type of narrative poem that tells a story in a simple, straightforward way. It often features a strong, memorable melody.
* Metrical romance: This is a type of medieval narrative poem that tells a romantic story, often involving knights, ladies, and chivalry.
* Idyll: This is a type of poem that focuses on a peaceful and idyllic scene or event. It often features pastoral imagery.
The best way to describe a long narrative poem is to consider its specific content, style, and purpose.