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.
blast - To explode or destroy something or someone with explosives, or to break through or hit something with a similar, very strong force
While building the tunnel through the mountain, the construction crew blasted its way day by day until it was finished.
