Words That Rhyme With "Unionism" :

2 syllables:

chrism, chrisom, ism, prism, schism

3 syllables:

abysm

4 syllables:

Newmanism

5 syllables:

dichromatism, exclusionism, illusionism, nonunionism

6 syllables:

evolutionism, medievalism, reconstructionism, revolutionism, rosicrucianism