Here's what rhymes with rethusa.
appaloosa Words that almost rhyme with rethusa
helluva hua summa hula supra sutra tuna ua stupa tua puma scuba tuba duenna chukka doodah lacuna pupa bazooka pukka louvre fistula scrofula beluga vicuna satsuma macula barracuda hallelujah manoeuvre incunabula outmanoeuvre