Unrhymed iambic pentametre lines illustrate a

Unrhymed iambic pentameter lines illustrate blank verse. Blank verse is a type of poetry that doesn't have a rhyme scheme but is written in iambic pentameter. Iambic pentameter is a meter in which each line contains ten syllables, with a stress on every second syllable. This creates a rhythm that can be pleasing to the ear and helps to give the poem a sense of order and structure, even without rhyme. Blank verse is often used in long-form poetry such as epics, plays, and narrative poems, as well as in modern poetry.