Legitimacy rhymes with:
illegitimacy, illegitimacy, illegitimacy, intimacy, illegitimacy, intimacy, almasy, biopharmacy, diplomacy, illegitimacy, intimacy, pharmacy, primacy, supremacy
Legitimacy sounds like:
lactating, lasting, legitimize, legitimizes, lightening, lightens, lightheadedness, lighting, lighting's, lightness, lightning, lightnings, liquidating, liquidations, listening, listens, listing, listings, locating, locations, lusitania's, lusitanias, lusting