Words That Rhyme With "Responsum" :
2 syllables:
awesome, bauson, blossom, bossen, Bronson, bronzen, crossen, Dawson, fossen, gossan, handsome, hansom, johnsen, johnson, Johnston, Jonson, Lawson, lonesome, longsome, monsen, ransom, rossen, sconcheon, sensum, Thomson, transom, winsome