Words That Rhyme With "Assiduously" :

3 syllables:

gibbously, viciously, villously

4 syllables:

ambitiously, auspiciously, capriciously, factitiously, fictitiously, flagitiously, judiciously, litigiously, maliciously, officiously, perniciously, prodigiously, propitiously, religiously, seditiously, suspiciously

5 syllables:

adscititiously, adventitiously, avariciously, expeditiously, inauspiciously, injudiciously, irreligiously, obreptitiously, sacrilegiously, superstitiously, surreptitiously, unpropitiously, unreligiously