| perplexity(noun, uncertainty, bewilderment, puzzlement, mystification) |
| reaction(back, slow, backward, reverse direction) |
| recession(back, slow, backward, reverse direction) |
| recidivation(back, slow, backward, reverse direction) |
| recidivism(back, slow, backward, reverse direction) |
| recrudescence(back, slow, backward, reverse direction) |
| recurrence(back, slow, backward, reverse direction) |
| reentry(back, slow, backward, reverse direction) |
| refluence(back, slow, backward, reverse direction) |
| reflux(back, slow, backward, reverse direction) |
| regress(back, slow, backward, reverse direction) |
| regression(back, slow, backward, reverse direction) |
| relapse(back, slow, backward, reverse direction) |
| remainder(back, slow, backward, reverse direction) |
| renewal(back, slow, backward, reverse direction) |
| restoration(back, slow, backward, reverse direction) |
| retroaction(back, slow, backward, reverse direction) |
| retrocession(back, slow, backward, reverse direction) |
| retroflexion(back, slow, backward, reverse direction) |
| retrogradation(back, slow, backward, reverse direction) |