| persuasion(drive, desire, inspiration, incentive, ambition) |
| piquing(noun, charge, cause, boost, spur) |
| prompting |
| provocative |
| rabble-rousing |
| radical stimulus(noun, expression, spur, goad, incentive) |
| reactant(noun, spur, goad, incentive, impetus) |
| reactionary(noun, spur, goad, incentive, impetus) |
| resolve(noun, feeling, drive, passion, desire) |
| rousing |
| shot in the arm(noun, expression, idiom, charge, cause) |
| spark plug(noun, expression, drug, spur, goad) |
| spontaneity(noun, feeling, drive, passion, desire) |
| synergist(noun, spur, goad, incentive, impetus) |
| thought(noun, feeling, drive, passion, desire) |
| turn-on(noun, charge, cause, start, boost) |
| urge(noun, feeling, drive, start, passion) |
| urging(noun, charge, cause, boost, spur) |
| vagary(noun, feeling, drive, passion, desire) |
| wave maker(noun, expression, spur, goad, incentive) |