| drop(noun, decline, fall, decrease, failure) |
| eclipse(escape, going, loss, passing, disappearance) |
| error(back, slow, backward, reverse direction) |
| fault(back, slow, backward, reverse direction) |
| flight(noun, restraint, escape, retreat, loss) |
| frustration(back, slow, backward, reverse direction) |
| frustrations(back, slow, backward, reverse direction) |
| hard times(noun, expression, action, drop, decline) |
| life form(back, slow, backward, reverse direction) |
| living thing(back, slow, backward, reverse direction) |
| mistake(back, slow, backward, reverse direction) |
| organism(back, slow, backward, reverse direction) |
| oversight(back, slow, backward, reverse direction) |
| recessional |
| remainder(back, slow, backward, reverse direction) |
| retraction |
| retrogressive(back, slow, backward, reverse direction) |
| reversion to type(back, slow, backward, reverse direction) |
| slide(noun, action, drop, decline, fall) |
| vestige(back, slow, backward, reverse direction) |