Words That Rhyme With "Wastewater" :

2 syllables:

blotter, cottar, cotter, daughter, dotter, hotter, jotter, knotter, lawter, lotter, ottar, otter, plotter, potter, rotter, slaughter, slotter, spotter, swotter, totter, trotter, water

3 syllables:

breakwater, dewater, garrotter, rainwater, tailwater