Wiktionary
unrhyme
n. A line of verse that does not rhyme. vb. To remove the rhyme or expected rhyme from.
Usage examples of "unrhyme".
If you have ever heard her, you will know what I mean by unrhymed and unversed poetry.
A passage or two of the unrhymed thoughts, with long periods of interval, will suggest the course of her mental history.
It pairs a sequence of thirteen short lines with a concluding, unrhyming apothegm.