arduous

But first he has the arduous task of forming a coalition.

The country has a history of corruption, the UAV market is crowded, and simply visiting to scout deals is arduous and potentially dangerous.

The beginning of all things may be difficult, but the path to further gains looks less arduous.

Americans aren’t eager to do arduous farm work, so most apple picking falls to immigrants and foreign guest workers in the U.S. on temporary H-2A visas.

There are mysteries to solve, of course, but they come and go, while family, even at its most arduous and argumentative, is forever.