Experiential rhymes with:
confidential, differential, essential, henschel, inferential, jurisprudential, nonresidential, potential, quintessential, anschel, confidential, differential, essential, financial, henschel, hounshell, inferential, interprovincial, jurisprudential, minshall, nonfinancial, nonresidential, potential, provincial, quintessential, wunschel