| free-willed(adjective, feature, characteristic, free, deliberate) |
| freely(adjective, feature, characteristic, free, deliberate) |
| genuine(adjective, feature, characteristic, honest, modest) |
| headlong(noun, adjective, thoughtless, rash, unthinking) |
| honorable(adjective, feature, characteristic) |
| honorary(adjective, feature, characteristic, free, regard) |
| honourable(adjective, feature, characteristic) |
| instant(adjective, prompt, emotional, instinctive, sudden) |
| off-the-cuff(adjective, simple, informal, natural, straightforward) |
| out of the blue(adjective, sudden) |
| quick(noun, adjective, passionate, violent, thoughtless) |
| unannounced(adjective, unexpected) |
| uncoerced |
| uncompensated(adjective, feature, characteristic, regard) |
| uncontrived(adjective, simple, easy, real, impulsive) |
| uninvited(adjective, willing, arrogant, unexpected, voluntary) |
| unpaid(adjective, feature, characteristic, free, deliberate) |
| unrequested(adjective, willing, arrogant, voluntary, unwelcome) |
| unrestrained(adjective, calm, simple, plain, relaxed) |
| unsought(adjective, willing, arrogant, voluntary, unwelcome) |