| champion(noun, radical, partisan, reactionary, leftist) |
| impulse(noun, spur, goad, incentive, impetus) |
| motivation(noun, spur, goad, incentive, impetus) |
| reformer(noun, advocate, radical, partisan, reactionary) |
| spark plug(noun, expression, spur, goad, incentive) |
| synergist(noun, spur, goad, incentive, impetus) |
| adjuvant(noun, spur, goad, incentive, impetus) |
| adjy(noun, advocate, radical, partisan, reactionary) |
| agitator(noun, person, advocate, spur, radical) |
| anarchist(noun, radical, partisan, reactionary, leftist) |
| catalyst(noun, activity, spur, goad, incentive) |
| causes trouble(noun, expression, radical, reactionary, leftist) |
| demagogue(noun, radical, partisan, reactionary, leftist) |
| disrupter(noun, advocate, radical, partisan, reactionary) |
| dissident(noun, radical, partisan, reactionary, leftist) |
| dogmatist(noun, advocate, radical, partisan, reactionary) |
| enzyme(noun, spur, goad, incentive, impetus) |
| fighter(noun, radical, partisan, reactionary, leftist) |
| firebrand(noun, radical, partisan, reactionary, leftist) |
| fomenter(noun, advocate, radical, partisan, reactionary) |