Noncommittal rhymes with:
committal, committal, committal, smittle, transmittal, acquittal, belittle, bittel, bittle, brittle, committal, hittle, it'll, kittel, kittell, kittle, knittel, knittle, littell, little, lyttle, pittle, pytel, rittle, skittle, smittle, spittle, tittel, tittle, transmittal, vittle, whittle, zittel