Impatient is a synonym for restive.

restive

restless

Many people outside of the West are restive about immigration issues. Countries in Europe have not advanced in this area as the West has.

Restive is an adjective meaning refusing to move when referring to a horse or other animal. It also means uneasy under restriction or resisting control. Example sentences: The horse that had seemed cooperative on the lead became restive with a rider. The conquered tribes were becoming restive under the new rules imposed on them.

restless, unsettled, impatient, balky