| secret(adjective, sensitive, hidden, clandestine, underhanded) |
| secretive(adjective, unknowing, sneaky, covert, hermetical) |
| slyly(adverb, quietly, secretly, personally, privately) |
| sodden |
| stealthily(adverb, quietly, secretly, personally, privately) |
| stiff |
| stinko(adjective, drunk) |
| surreptitiously(adverb, quietly, secretly, personally, privately) |
| tight(adjective, high, drunk, lush, wasted) |
| unauthorized(adjective, permitted, sanctioned) |
| under-the-table(adjective, sensitive, hidden, unknowing, underhanded) |
| underhandedly(adverb, quietly, secretly, personally, privately) |
| unlicensed(adjective, irregular, unwarranted, criminal, illegal) |
| unobserved(adverb, quietly, secretly, personally, privately) |
| unwarrantable(adjective, irregular, unwarranted, criminal, illegal) |
| woozy |
| zonked(adjective, drunk, intoxicated, stunned) |
| QT(adjective, hidden, unknowing, clandestine, underhanded) |
| against the law |
| apprenticed(unknowing, hermetical, unbriefed) |