| volatile(adjective, vague, mysterious, changeable, subtle) |
| illusory(adjective, mean, smooth, deception, cunning) |
| imponderable(adjective, vague, impulsive, unpredictable, mysterious) |
| transitory(adjective, vague, impulsive, unpredictable, mysterious) |
| baffling(adjective, mysterious, evasive) |
| cagey(adjective, mean, smooth, cunning, dubious) |
| dishonest(adjective, mean, smooth, smart, false) |
| faint(adjective, gentle, mild, subtle) |
| fraudulent(adjective, false, dishonest, deceitful, lying) |
| incomprehensible(adjective, mysterious, evasive) |
| indefinable(adjective, mysterious, evasive) |
| mysterious |
| phantom(adjective, vague, mysterious, subtle, demoniac) |
| artful(mean, smooth, cunning, knowing, sneaky) |
| cunning(adjective, mean, smooth, smart, deception) |
| delicate(adjective, gentle, mild, subtle) |
| delusive(mean, smooth, deception, cunning, knowing) |
| dodgy |
| furtive(adjective, mean, smooth, cunning, dubious) |
| nebulous(hazy, indistinct, indeterminate) |