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