Superfamily rhymes with:
awesomely, bottomley, bramley, bromley, brumley, calmly, chamlee, chumley, comely, comley, comly, cromley, crumley, crumly, dimly, emley, extremely, felmlee, firmly, gamely, ghormley, gimli, glumly, gormley, gormly, gramley, grimley, grimly, hamley, handsomely, homely, lamely, lamle, lemley, lumley, namely, parmley, plumley, primly, randomly, remley, romley, rumley, solemnly, thomley, timely, uniformly, unseemly, untimely, warmly, wormley