Mcadams rhymes with:
adam's, adams, adams', addams, adam's, adams, adams', addams, addendums, condoms, fiefdoms, freedom's, freedoms, kingdom's, kingdoms, memorandums, modems, needham's, odoms, oldham's, referendums, saddam's, sedums, sheikdoms, tandem's, wadhams
Mcadams sounds like:
macdonough, maktoums, mangosteens, mcdonagh, mcdonough, megatons, mesdames, minnesotans, misquoting, misstating, moonstones, mustang, mustangs