There are many synonyms that can be used in place of "metrical romance." One such synonym is "chivalric romance," which encompasses the themes of courtly love and knightly adventures that are common in this genre. Another option is "epic romance," which suggests a grand, sweeping narrative. "Verse romance" is a more specific term that highlights the use of poetic language in this type of storytelling. "Love ballad" is another synonym that emphasizes the romantic aspect of the genre. Other options include "romantic epic," "heroic romance," and "lyric romance." Overall, these synonyms showcase the many facets of this rich and varied form of literature.