| spontaneous(adjective, free, deliberate, natural, impulsive) |
| unasked(adjective, free, keen, happy, agreeable) |
| voluntary(adjective, free, simple, keen, happy) |
| unsolicited(adjective, uninvited, unsought) |
| uninvited(adjective, willing, arrogant, voluntary, unwelcome) |
| feeling(adjective, keen, happy, agreeable, enthusiastic) |
| free(adjective, simple, deliberate, natural, casual) |
| gratuitous(adjective, free, deliberate, natural, willing) |
| unforced(adjective, free, simple, keen, happy) |
| uncompelled(adjective, free, simple, deliberate, natural) |
| unprompted(adjective, simple, natural, casual, impulsive) |
| unsought(adjective, willing, arrogant, voluntary, unwelcome) |
| unwanted(adjective, willing, arrogant, voluntary, unwelcome) |
| unwelcome(adjective, willing, arrogant, voluntary, unsolicited) |
| automatic(adjective, simple, natural, casual, impulsive) |
| autonomous(adjective, free, deliberate, natural, willing) |
| discretional(adjective, free, deliberate, natural, witting) |
| independent(adjective, free, deliberate, natural, willing) |
| unrequested(adjective, willing, arrogant, freely, voluntary) |
| willing(adjective, free, simple, keen, agreeable) |