2 Syllablesgumption
Now you can make multisyllabic rhymes in the new rhymit app :)
3 Syllablesassumption, consumption, decumbent, encumbrance, incumbent, incumbent's, incumbents, presumption, procumbent, recumbent, resumption, triumphant
4 Syllablesincumbentes, incumbentess
5 Syllablessuperincumbent