Conceivable (adjective)

1. Able to be imagined or understood.
2. Able to be thought of as a possibility.

Origin:

Late middle english: from old french, or from late latin concevabilis, from latin concepire "conceive".

Examples:

1. It is not conceivable that he would do such a thing.
2. It is conceivable that he would do such a thing.
3. It is conceivable that a cure for cancer will be found.
4. It is not conceivable that a cure for cancer will be found.
5. It is conceivable that the company will go bankrupt.