Bad
preposterous - Contrary to reason or common sense; utterly absurd or ridiculous.
When Sandy's stock broker called and suggested that he sell half his stocks because he felt the market was overvalued, Sandy thought the idea was preposterous - but it turned out that his stock broker was right.
negligible - So small or unimportant that it can be ignored or doesn't have a noticeable effect; insignificant in amount, size, or impact — too minor to be worth considering.

The difference in price was negligible, so she bought with the higher-quality option.