Insurmountable [adjective]

The current, anti-democratic and intellectually dishonest Republican Party is an insurmountable barrier to the development of a viable alternative to the existing Democratic Party.

These challenges of intermittency and geography are not insurmountable—batteries and water can store energy, and better transmission systems can be built.

By the end of the summer, the anxiety had become insurmountable and he left his job.

Some serve as a foil — a common enemy players can rally around to come together and ultimately overcome insurmountable odds.

The final gaps, though, proved insurmountable and created a level of bitterness, according to their letters.

There’s an almost insurmountable mountain to climb if you’re trying to create a good brand off a bad product.

I knew she believed in me and in my ability to find a solution to what seemed like an insurmountable challenge.

Thus age and avarice can always over-leap barriers which, to the young and romantic, are insurmountable.

The difficulty of conveying heavy weights up the mountain foot-paths was almost insurmountable.

Situated as we are, in the United States, many, and almost insurmountable obstacles present themselves.