3 Syllablesgraciousnes, spaciousnes
Now you can make multisyllabic rhymes in the new rhymit app :)
4 Syllablesaudaciousnes, capaciousnes, edaciousnes, fugaciousnes, loquaciousnes, mendaciousnes, minaciousnes, pugnaciousnes, rapaciousnes, sagaciousnes, salaciousnes, sequaciousnes, tenaciousnes, ungraciousnes, veraciousnes, vivaciousnes, voraciousnes
5 Syllablescontumaciousnes, incapaciousnes, perspicacioushis, perspicaciousnes, pertinaciousnes, testaceousnes, vexatiousnes
6 Syllablesdisputatiousnes, saponaceousnes