Words That Rhyme With "Opportunism" :

2 syllables:

chrism, chrisom, ism, prism, schism

3 syllables:

abysm, bonism, Humism, Jainism, manism, monism, nanism, unison

4 syllables:

caffeinism, cocainism, Japanism, marranism

5 syllables:

dichromatism, microphonism

6 syllables:

aldosteronism, medievalism, reconstructionism