flaw

abnormality, distortion, irregularity, malformation, misshape

bug, glitch, kink

blot, blur, spot, stain, taint

damage, defacement, impairment, injury

failing, weakness

deteriorate, enervate, enfeeble, undermine, weaken

erode, scour, wash out, wear (away)

blight, tarnish

dent, ding, dint

botch, gum (up), queer

lacerate, wound

disable, hamstring, lame, maim, mangle, mutilate, torment, torture

annihilate, bang up, bash, batter, clobber, crush, dash, decimate, demolish, desolate, destroy, devastate, do in, pulverize, raze, ruin, scourge, shatter, smash, tear down, total, waste, wipe out, wreck