1. Our resources in technical knowledge are imponderable.

2. The effect of his new method is imponderable.

3. I hesitated, weighing and balancing the imponderable realities.

4. Our imponderable resources in knowledge are constantly growing and are inexhaustible.

5. 2 How all this underaged precocity impacts his initial take-home is an imponderable.

6. In his scheme, investment was governed by the animal spirits of entrepreneurs, facing an imponderable future.

7. The greatest imponderable may be the personal impact the humiliation of the ethics case has brought.

8. And then there is the ever-present imponderable: the possible need, at some point, to finance the horrendous costs of reunification with destitute North Korea when that state collapses.