Radiant rhymes with:
gradient, gradient, cordiant, disobedient, expedient, gradient, ingredient, obedient, affiant, ambient, cordiant, defoliant, deviant, disobedient, expedient, gradient, incipient, ingredient, invariant, lenient, luxuriant, miscreant, nutrient, obedient, percipient, prescient, prurient, recipient, salient, subservient, variant
Radiant sounds like:
radant, radmund, rationed, readmit, readmitted, red-handed, redeemed, redhanded, redmond, redmund, redondo, redound, retained, retinoid, rhodanthe, rodent, rodmond, rodmund, rotondi, rotondo, rotund, rotunda, rotundo, rudiment, rudnet