3 Syllablesgraciously, spaciously
Now you can make multisyllabic rhymes in the new rhymit app :)
4 Syllablesaudaciously, capaciously, edaciously, fallaciously, fugaciously, loquaciously, mendaciously, minaciously, pugnaciously, rapaciously, sagaciously, salaciously, sequaciously, tenaciously, ungraciously, veraciously, vivaciously, voraciously
5 Syllablescontumaciously, cretaceously, efficaciously, herbaceously, perspicaciously, pertinaciously, setaceously, vexatiously
6 Syllablesdisputatiously, farinaceously, inefficaciously, violaceously