Oriental rhymes with:
accidental, coincidental, compartmental, continental, dental, detrimental, developmental, elemental, environmental, experimental, fundamental, gentle, incidental, incremental, instrumental, intercontinental, intergovernmental, judgemental, judgmental, lentil, mental, monumental, nongovernmental, occidental, occidentale, ornamental, pancontinental, parental, pimental, regimental, rental, sentell, sentimental, simental, supplemental, temperamental, transcendental, transcontinental, unsentimental, yentl
Oriental sounds like:
orenthal, ornamental, ornamentally, ornately