| sinfulness(noun, wrong, evil, shame, blame) |
| spot(noun, mark, weakness, burden, responsibility) |
| stumble(noun, ruin, slip, failure, mistake) |
| typo(noun, weakness, uncertainty, mistake, failing) |
| wart(noun, mark, weakness, spot, stain) |
| annulment(back, slow, backward, reverse direction) |
| atavism(back, slow, backward, reverse direction) |
| atavist(back, slow, backward, reverse direction) |
| atrocity(break, trouble, damage, evil, case) |
| backset(back, slow, backward, reverse direction) |
| backsliding(back, slow, backward, reverse direction) |
| backward deviation(back, slow, backward, reverse direction) |
| backward motion(back, slow, backward, reverse direction) |
| backward step(back, slow, backward, reverse direction) |
| backwardation(back, slow, backward, reverse direction) |
| birthmark(noun, mark, spot, stain, blemish) |
| blooper(noun, confusion, mistake, lapse, error) |
| blotch(noun, mark, spot, stain, blemish) |
| breakdown(noun, trouble, failure, error, problem) |
| cancellation(back, slow, backward, reverse direction) |