Words That Rhyme With "Hilarious" :

3 syllables:

carious, ferreous, glaireous, Marius, scarious, various

4 syllables:

bifarious, burglarious, calcareous, contrarious, denarius, gregarious, nectareous, nefarious, precarious, senarius, vagarious, vicarious

5 syllables:

acinarious, anticarious, Belisarius, multifarious, octonarius, omnifarious, retiarius, Sagittarius, septenarius, Stradivarius, temerarious