| improvisation(noun, speech, planned, prepared, improvised) |
| extemporisation(noun, feeling, drive, resolve) |
| impromptu(noun, planned, prepared, improvised) |
| impulse(noun, drive, desire, resolve, urge) |
| ad-lib(noun, planned, prepared, improvised) |
| ad lib(noun, expression) |
| catalyst(noun, feeling, drive, passion, desire) |
| actuation(noun, feeling, drive, passion, desire) |
| appeal(noun, feeling, drive, passion, desire) |
| bent(noun, feeling, drive, passion, desire) |
| caprice(noun, feeling, drive, passion, desire) |
| desire(noun, feeling, drive, passion, resolve) |
| disposition(noun, feeling, drive, passion, desire) |
| excitant(noun, feeling, drive, passion, desire) |
| extemporize |
| fancy(noun, feeling, drive, passion, desire) |
| feeling(noun, drive, passion, desire, resolve) |
| flash(noun, feeling, drive, passion, desire) |
| goad(noun, feeling, drive, passion, desire) |
| hunch(noun, feeling, drive, passion, desire) |