Ketterer rhymes with:
schmetterer, adulterer, batterer, caterer, dotterer, fitterer, nurturer, pfisterer, plasterer, putterer, riesterer, schmetterer, waterer
Ketterer sounds like:
kadar, kader, kaster, kater, keator, kedar, keeter, keister, keiter, kester, ketter, ketura, kidder, kiesewetter, kiester, kister, koester, koether, koetter, kohtaro, kohtoro, kooistra, koster, kotara, kothari, kotter, kuder, kuester, kuether, kuster, kustra, kuter, kutter