THESAURUS
ribbed
canaliculate, canaliculated, chamfered, channeled, corduroy, corduroyed, corrugate, corrugated, costate, crimped, cut, dadoed, engraved, fluted, furrowed, gashed, goffered, gouged, grooved, incised, pleated, rabbeted, rifled, rutted, rutty, scored, scratched, slit, striated, sulcate, sulcated, troughed, wrinkled
ROGET THESAURUS
ribbed
Furrow
N
furrow, groove, rut, sulcus, scratch, streak, striae, crack, score, incision, slit, chamfer, fluting, corduroy road, cradle hole, channel, gutter, trench, ditch, dike, dyke, moat, fosse, trough, kennel, ravine, tajo, thank-ye-ma'am, furrowed,
ribbed, striated, sulcated, fluted, canaliculated, bisulcous, bisulcate, bisulcated, canaliferous, trisulcate, corduroy, unisulcate, costate, rimiform.