Piddling rhymes with:
middling, backpedaling, bundling, coddling, cradling, dwindling, findling, fondling, huddling, hurdling, idling, meddling, middling, modeling, muddling, nordling, paddling, pedaling, peddling, remodeling, saddling, sidling, yodeling
Piddling sounds like:
paddling, pedaling, peddling, petulance, ptolemaic