Words That Rhyme With "Perfidiously" :

4 syllables:

hideously, idiocy, impiously, odiously, piteously, studiously, tediously

5 syllables:

commodiously, despiteously, dispiteously, fastidiously, insidiously, invidiously, lasciviously, melodiously, punctiliously, quotidianly

6 syllables:

ignominiously, incommodiously, superciliously, unmelodiously