Mastermind rhymes with:
nevermind, nevermind, colorblind, headlined, humankind, nevermind, nonaligned, outlined, sidelined, streamlined, underlined, wunderkind
Mastermind sounds like:
macdermott, macdiarmid, masterminded, mcdermid, mcdermitt, mcdermot, mcdermott, mcdiarmid