| contingent | (adj) Dependent upon conditions or events not yet established; conditional Likely but not certain to occur Happening by chance or accident. (n) A representative group forming part of an assemblage. |
| eventuality | (n) A possible event; possibility |
| feasible | (adj) Capable of being accomplished or brought about. Capable of being utilized or dealt with successfully; suitable; convenient; likely; plausible. |
| implausible | (adj) Not valid, likely or acceptable; difficult to believe. |
| inconceivable | (adj) Incapable of being imagined, comprehended, or fully grasped. so unlikely or surprising as to have been thought impossible. |