ROGET THESAURUS
Corrugate
Contraction
VB
become small, become smaller, lessen, decrease, grow less, dwindle, shrink, contract, narrow, shrivel, collapse, wither, lose flesh, wizen, fall away, waste, wane, ebb, decay, be smaller than, fall short of, not come up to, render smaller, lessen, diminish, contract, draw in, narrow, coarctate, boil down, constrict, constringe, condense, compress, squeeze, corrugate, crimp, crunch, crush, crumple up, warp, purse up, pack, squeeze, stow, pinch, tighten, strangle, cramp, dwarf, bedwarf, shorten, circumscribe, restrain, (subtraction) 38 abrade, pare, reduce, attenuate, rub down, scrape, file, file down, grind, grind down, chip, shave, shear, wear down.
Roughness
VB
be rough, go against the grain, render-rough, roughen, ruffle, crisp, crumple, corrugate, set on edge, stroke the wrong way, rumple.
Fold
VB
fold, double, plicate, plait, crease, wrinkle, crinkle, crankle, curl, cockle up, cocker, rimple, rumple, flute, frizzle, frounce, rivel, twill, corrugate, ruffle, crimple, crumple, pucker, turn down, double down, down under, tuck, ruck, hem, gather.