Inbreeding rhymes with:
breeding, breeding, misreading, reding, rereading, acceding, bleeding, breeding, ceding, conceding, exceeding, feeding, heeding, impeding, interceding, kneading, leading, misleading, misreading, needing, pleading, preceding, preceeding, proceeding, receding, reding, rereading, seceding, seeding, speeding, stampeding, succeeding, superseding, weeding
Inbreeding sounds like:
imparting, importance, importing, imprudence, inebriating, infuriating