One syllable words that rhyme with impacts
acts, ax, axe, backes, backs, bax, black's, blacks, blacks', cac's, caq's, cracks, dacs, dax, dax', facts, fax, flax, hacks, haq's, jack's, jacks, jaques, knacks, lac's, lacks, lax, mac's, mack's, macks, macs, max, maxx, pac's, packs, pacs, pacts, pak's, pax, plack's, plaques, plax, quacks, racks, rax, sachs, sachs', sacks, sacs, saks, sax, saxe, shacks, slacks, smacks, snacks, stac's, stacks, tacks, tax, track's, tracks, trax, vax, wacks, wax, whacks, x., yax, zack's, zacks
Two syllable words that rhyme with impacts
attacks, chirac's, impacts, knick-knacks, pretax, relax