Unrest is an uneasy, agitated, or disturbed condition. Strikes and public protests are often part of social and political unrest.
There's a personal, small-scale kind of unrest, like the unrest caused at a birthday party by one extremely unhappy child, or the unrest that results from a class clown's practical jokes. Then there's the societal unrest that results in angry public demonstrations. Unsafe working conditions might lead to unrest among laborers, and a government's authoritarian rule often results in unrest too, with citizens marching in the streets.