Dextrous rhymes with:
ambidextrous, ambidextrous, ambidextrous, ambidextrous, disastrous, estrous, estrus, headmistress, lustrous, mistress, monstrous
Dextrous sounds like:
daughter's, daughters, daughters', decoders, degutare's, destroyers, destroys, detectors, dexter's, dextrose, dictators, disasters, disastrous, distress, distresses, distrigas, doctor's, doctors, doctors', dusters