Words That Rhyme With "Onanism" :

2 syllables:

chrism, chrisom, ism, prism, schism

3 syllables:

abysm

4 syllables:

Leninism, prochronism, Romanism, tokenism

5 syllables:

atonalism, buchananism, dichromatism

6 syllables:

medievalism, polytonalism, reconstructionism