Here's what rhymes with rivalrous.
Words that almost rhyme with rivalrous
idleness libelous righteousness riotous privatise violence violets sidedness chitinous giantess ileitis lifelessness iciness litheness piousness psoriasis quietness mindfulness vaginalis timelessness finalists nihilists quietus guilelessness spitefulness skilfulness blitheness tirelessness archdiocese childlessness viaducts mindlessness lopsidedness spiciness spinelessness recitalists impiousness psychiatrists entitlements nonviolence podiatrists satyriasis environments