Here's what rhymes with propounded.

Consider these alternatives

expounded / founded advaita / data enunciated / dated postulated / dated rationalist / nationalist monistic / characteristic refutation / operation formulated / created theorizing / rising dogmatic / dramatic disproved / used christology / quality elucidated / stated explicated / dated espousing / housing postulates / states heretical / theoretical materialist / imperialist gnosticism / given innovated / dated phenomenological / logical expounding / surrounding postmodernism / given theories / series