Sympathetic rhymes with:
parasympathetic, unsympathetic, parasympathetic, unsympathetic, empathetic, parasympathetic, unsympathetic, apathetic, empathetic, parasympathetic, pathetic, unsympathetic
Sympathetic sounds like:
snippets, somebody's, sumptuous, symbiotic, sympathies, sympathize, sympathizes, synbiotics, synoptic, synoptics