If something is overwhelming, it affects you very strongly, and you do not know how to deal with it.
overpowering
The task won't feel so overwhelming if you break it down into small, easy-to-accomplish steps.
把这个任务分解为几个简单易行的小步骤,就不会感到这么难了。
You can use overwhelming to emphasize that an amount or quantity is much greater than other amounts or quantities.
The overwhelming majority of small businesses go broke within the first twenty-four months.
绝大多数的小公司在头两年内就破产了。