| instigator(noun, radical, operative, partisan, motive) |
| agent provocateur(noun, expression, idiom, agent) |
| agitator(noun, person, advocate, radical, goad) |
| firebrand(noun, radical, operative, partisan, motive) |
| fomenter(noun, advocate, radical, partisan, reactionary) |
| incendiary(noun, radical, operative, partisan, motive) |
| inciter(noun, advocate, radical, partisan, reactionary) |
| demagogue(noun, radical, partisan, reactionary, leftist) |
| rabble-rouser(noun, radical, operative, partisan, reactionary) |
| troublemaker(noun, radical, operative, partisan, reactionary) |
| catalyst |
| exciter |
| provoker |
| ringleader(noun, radical, operative, partisan, reactionary) |
| adjy(noun, advocate, radical, partisan, reactionary) |
| agitprop |
| anarchist(noun, radical, partisan, reactionary, leftist) |
| causes trouble(noun, expression, radical, reactionary, leftist) |
| champion(noun, radical, partisan, reactionary, leftist) |
| disrupter(noun, advocate, radical, partisan, reactionary) |