i Register
In some senses, bolshie is marked as dated, derogatory, British, UK. Watch for register when choosing this word.
noun
A government leftist, especially a communist, socialist, or labour union leader.
adj
Difficult or rebellious.
Kate, don't be so bolshie!
It's quite possible that I and my pals were nasty bolshy little schoolboys who thoroughly deserved to be thrashed through the gorse bushes in the dead of the night[.]