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