What rhymes with antonym?

There aren't many perfect rhymes for "antonym" in the English language. However, you could use near rhymes or slant rhymes, such as:

* Near Rhymes:

* economy

* synonym (while this is technically a synonym for "antonym", it can also be used as a near rhyme in poetry)

* monotony

* Slant Rhymes:

* phantom

* polygon

* column

The best rhyme choice will depend on the context of your writing.