| Solution | Length | |
|---|---|---|
| 4 letters | ||
| yogi | 4 | |
| deep | 4 | |
| 5 letters | ||
| inner | 5 | |
| 6 letters | ||
| occult | 6 | |
| secret | 6 | |
| sealed | 6 | |
| veiled | 6 | |
| arcane | 6 | |
| untold | 6 | |
| 7 letters | ||
| private | 7 | |
| special | 7 | |
| exacter | 7 | |
| UNHUMAN | 7 | |
| HARDTOG | 7 | |
| virtual | 7 | |
| precise | 7 | |
| several | 7 | |
| STIFLED | 7 | |
| 8 letters | ||
| resident | 8 | |
| singular | 8 | |
| unspoken | 8 | |
| abstruse | 8 | |
| profound | 8 | |
| rarefied | 8 | |
| sleeping | 8 | |
| advanced | 8 | |
| ulterior | 8 | |
| specific | 8 | |
| 9 letters | ||
| unearthly | 9 | |
| unuttered | 9 | |
| RECONDITE | 9 | |
| smothered | 9 | |
| spiritual | 9 | |
| psychical | 9 | |
| SUBMERGED | 9 | |
| UNWORLDLY | 9 | |
| 10 letters | ||
| top-secret | 10 | |
| superhuman | 10 | |
| PRIVILEGED | 10 | |
| respective | 10 | |
| restricted | 10 | |
| unrevealed | 10 | |
| SUBJECTIVE | 10 | |
| SUPPRESSED | 10 | |
| UNDERLYING | 10 | |
| 11 letters | ||
| UNDER WRAPS | 11 | |
| UNDISCLOSED | 11 | |
| unalienable | 11 | |
| unutterable | 11 | |
| 12 letters | ||
| ACROAMATICAL | 12 | |
| supernatural | 12 | |
| 13 letters | ||
| superphysical | 13 | |
| undisclosable | 13 | |
| PRETERNATURAL | 13 | |
| 14 letters | ||
| UNQUESTIONABLE | 14 | |
| TRANSCENDENTAL | 14 | |
| 15 letters | ||
| unchallengeable | 15 | |
| 17 letters | ||
| transcendentalist | 17 | |