Unterman rhymes with:
gonterman, lanterman, alterman, attermann, batterman, bitterman, bittermann, broxterman, chesterman, cotterman, determan, dochterman, fetterman, futterman, gonterman, guterman, gutterman, halterman, holterman, hosterman, ketterman, kitterman, kloosterman, klosterman, klostermann, kolterman, lanterman, leiterman, letterman, lichterman, lobsterman, lutterman, masterman, munsterman, osterman, ostermann, peterman, petermann, putterman, quarterman, ratterman, schwieterman, shusterman, testerman, waeltermann, waterman, watermen, westerman, westermann
Unterman sounds like:
unadorn, underarm, underman, undermine, unitarian, unitrin