| A | B |
| Contingent | dependent upon conditions or events |
| Eventuality | a possible event or outcome |
| Feasible | capable of being accomplished |
| Implausible | not valid, likely, or acceptable |
| Inconceivable | incapable of being imagined |
| Perchance | perhaps; possibly |
| Preposterous | contrary to nature or reason |
| Presumably | by reasonable assumption |
| Proclivity | a natural inclination or tendency |
| Prone | tending; inclined |