| Solution | Length | |
|---|---|---|
| 3 letters | ||
| flu | 3 | |
| 4 letters | ||
| spam | 4 | |
| bore | 4 | |
| 5 letters | ||
| angst | 5 | |
| 7 letters | ||
| unasked | 7 | |
| 8 letters | ||
| intruder | 8 | |
| UNSOUGHT | 8 | |
| unbidden | 8 | |
| 9 letters | ||
| unwelcome | 9 | |
| redundant | 9 | |
| unpopular | 9 | |
| uninvited | 9 | |
| undesired | 9 | |
| 10 letters | ||
| postagedue | 10 | |
| 11 letters | ||
| HOMEINVADER | 11 | |
| superfluous | 11 | |
| unnecessary | 11 | |
| undesirable | 11 | |
| 12 letters | ||
| uncalled-for | 12 | |
| unacceptable | 12 | |
| 13 letters | ||
| whiteelephant | 13 | |