| traceable |
| underground |
| underhand |
| undoubting(adjective, implicit) |
| unexpressed(hidden, obedient, unthinking, indirect, dormant) |
| unqualified(complete, firm, certain, obedient, wholehearted) |
| unquestioned(complete, firm, certain, obedient, wholehearted) |
| unquestioning(adjective, implicit) |
| unreserved(complete, firm, certain, obedient, wholehearted) |
| unsaid(silent, hidden, obedient, unthinking, indirect) |
| unshakable(complete, firm, certain, obedient, wholehearted) |
| valid(clear, sound, reasonable, sensible, rational) |
| well-organized(clear, sound, reasonable, sensible, rational) |
| wholehearted(complete, firm, certain, obedient, unthinking) |
| wise(clear, sound, reasonable, sensible, rational) |
| wordless(silent, hidden, indirect, assumed, latent) |
| accepted(silent, assumed, implicit, tacit, unspoken) |
| adumbrated |
| affiliable(adjective, minimal) |
| agreed(silent, tacit, unspoken) |