Ductile rhymes with:
artiodactyl, bachtel, bachtell, bechtol, brechtel, colorectal, fractal, hachtel, knechtel, macktal, prechtl, projectile, rectal
Ductile sounds like:
dactyl, decidedly, desautel, deshotel, diastole, digital, digitally, distal, distel, distil, distill, doggedly, dostal, dugdale