Separatism rhymes with:
corporatism, corporatism, astigmatism, conservatism, corporatism, despotism, dogmatism, egotism, electromagnetism, ergotism, ferromagnetism, helotism, hypnotism, magnetism, nepotism, patriotism, pragmatism, rheumatism, stigmatism
Separatism sounds like:
severtson, shepardson, sivertsen, sivertson, sportsman, sportsmen, syvertsen