Undercut rhymes with:
supercut, clearcut, haircut, shortcut, supercut, taxcut, anthrobot, chesnut, chestnut, clearcut, coconut, donut, doughnut, fingerhut, groundnut, haircut, hazelnut, hudnut, scuttlebutt, seragut, shortcut, steingut, supercut, taxcut, wackenhut, walnut
Undercut sounds like:
unaddressed, unauthorized, undercoat, undercooked, underside, undersized, understate, understated, understood, understudy, underused, underweight, underweighted, undressed, uninterested