Here's what rhymes with discontinuities.

Consider these alternatives

discontinuity / incongruity topicalization / relation deformations / relations protrusions / institutions inhomogeneities / deities continuities / annuities physiologic / logic discontinuous / continuous diminution / solution confusions / institutions incongruities / duties penetrations / relations deviations / relations attenuation / relation deformation / relation modulations / relations predefined / find macromolecules / schools computable / incomputable amplitudes / groups elisions / reasons materialisation / relation deform / form anachronisms / conditions undulations / relations inclusions / institutions