Fraudulent rhymes with:
vigilant, ambivalent, benevolent, corpulant, equivalent, excellent, flatulent, indolent, insolent, jubilant, malevolent, nonviolent, opulent, petulant, prevalent, redolent, somnolent, stimulant, truculent, turbulent, vigilant, violent, virulent
Fraudulent sounds like:
fredlund, freedland, friedland